Hole size determination method, apparatus, medium, and device

Abstract

The application discloses a hole size determination method and device, a medium and equipment, relates to the technical field of electronics, and is used for accurately determining the outlet hole size of a target area, so that the air flow direction of the target area is outside the target area, and no vortex exists inside the target area. The method comprises the following steps: inputting the simulation hole size of an outlet in a target area where a target device is located into an air flow simulation model to obtain simulation air flow parameters of the target area; the simulation air flow parameters are used to simulate the air flow movement state in the target area; the simulation air flow direction in the target area is determined according to the simulation air flow parameters; and the simulation hole size is determined as the actual hole size in the case that the simulation air flow direction in the target area flows from inside the target area to outside the target area and no vortex exists inside the target area.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and in particular to a method, apparatus, medium and device for determining the opening size. Background Technology

[0002] In the semiconductor chip manufacturing process, ensuring the yield of semiconductor chips requires maintaining the cleanliness of the area where the semiconductor equipment is located. To improve the cleanliness of this area, fans can be installed to prevent contaminants from entering the environment and to control airflow to remove contaminants generated by the semiconductor equipment.

[0003] However, with a constant fan speed, the opening size of the air outlet in the area where the semiconductor equipment is located will affect the airflow in that area, and thus the cleanliness of that area. Determining the appropriate opening size of the air outlet to ensure the cleanliness of the area where the semiconductor equipment is located is a pressing technical problem that needs to be solved. Summary of the Invention

[0004] This application provides a method, apparatus, medium, and equipment for determining the opening size, used to accurately detect abnormalities in handling equipment.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] Firstly, a method for determining the opening size is provided. The method includes: inputting the simulated opening size of the air outlet in the target area where the target device is located into an airflow simulation model to obtain simulated airflow parameters of the target area; using the simulated airflow parameters to simulate the airflow movement in the target area; determining the simulated airflow direction in the target area based on the simulated airflow parameters; and determining the simulated opening size as the actual opening size when the simulated airflow direction in the target area flows from the inside of the target area to the outside of the target area and there are no vortices inside the target area.

[0007] Optionally, the simulated airflow parameters include the simulated internal airflow velocity. Based on the simulated airflow parameters, the simulated airflow direction within the target area is determined, including: when the simulated internal airflow velocity is greater than the external airflow velocity outside the target area, the airflow direction in the target area is determined to be from inside the target area to outside the target area.

[0008] Optionally, the simulated airflow parameters also include simulated internal wind pressure. Based on the simulated airflow parameters, the simulated airflow direction within the target area is determined, including: when the simulated internal wind pressure is greater than the external wind pressure outside the target area, the airflow direction in the target area is determined to be from inside the target area to outside the target area.

[0009] Optionally, the method also includes: determining whether eddies exist in the target area based on the differences in simulated airflow parameters between adjacent sub-regions within the target area.

[0010] Optionally, the presence of eddies in the target area can be determined based on the differences in simulated airflow parameters between adjacent sub-regions within the target area, including: determining the wind pressure difference between adjacent sub-regions within the target area based on simulated airflow parameters; and determining that no eddies exist within the target area if the wind pressure difference between adjacent sub-regions is less than a wind pressure difference threshold.

[0011] Optionally, the presence of vortices in the target area can be determined based on the differences in simulated airflow parameters between adjacent sub-regions within the target area, including: determining the airflow velocity difference between adjacent sub-regions within the target area based on simulated airflow parameters; and determining that no vortices exist within the target area if the airflow velocity difference between adjacent sub-regions is less than the airflow velocity difference threshold.

[0012] Optionally, the method further includes: discretizing the airflow simulation function to obtain the discretized airflow simulation function; performing iterative calculations on the simulation parameters in the discretized airflow simulation function; stopping the iterative calculations when the residual of the airflow simulation function is less than a preset residual, and determining the iteratively calculated airflow simulation function as the airflow simulation model.

[0013] Based on the technical solution provided in this application, simulated airflow parameters for the target area are obtained by inputting the simulated opening size into the airflow simulation model. The simulated airflow direction within the target area is determined based on these parameters. Furthermore, if the simulated airflow direction within the target area flows from the inside to the outside of the target area, and no vortices exist within the target area, the simulated opening size is determined to be the actual opening size. Since the simulated airflow parameters are used to simulate the airflow movement within the target area, the presence of vortices and the simulated airflow direction in the target area can be determined through the simulated airflow movement. Based on the determination results, the opening size of the air outlet can be adjusted, improving the efficiency of determining the outlet opening size and ensuring the cleanliness of the area where the target equipment is located.

[0014] Secondly, an opening size determination device is provided, comprising: a processing unit and a determination unit; the processing unit is used to input the simulated opening size of the air outlet in the target area where the target device is located into the airflow simulation model to obtain the simulated airflow parameters of the target area; the simulated airflow parameters are used to simulate the airflow movement in the target area; the determination unit is used to determine the simulated airflow direction in the target area based on the simulated airflow parameters; the determination unit is also used to determine the simulated opening size as the actual opening size when the simulated airflow direction in the target area flows from the inside of the target area to the outside of the target area and there is no vortex inside the target area.

[0015] Optionally, the determining unit is specifically used to: determine the airflow direction of the target area from inside the target area to outside the target area when the airflow velocity inside the simulation is greater than the airflow velocity outside the target area.

[0016] Optionally, the determining unit is also used to: determine the airflow direction of the target area from inside the target area to outside the target area when the internal wind pressure in the simulation is greater than the external wind pressure outside the target area.

[0017] Optionally, the determining unit is also used to determine whether vortices exist in the target area based on the differences in simulated airflow parameters between adjacent sub-regions within the target area.

[0018] Optionally, the determining unit is further used to: determine the wind pressure difference between adjacent sub-regions within the target area based on the simulated airflow parameters; and determine that there are no eddies within the target area when the wind pressure difference between adjacent sub-regions is less than the wind pressure difference threshold.

[0019] Optionally, the determining unit is further used to: determine the airflow velocity difference between adjacent sub-regions within the target area based on the simulated airflow parameters; and determine that there are no vortices inside the target area when the airflow velocity difference between adjacent sub-regions is less than the airflow velocity difference threshold.

[0020] Optionally, the processing unit is also used to discretize the airflow simulation function to obtain the discretized airflow simulation function; the processing unit is also used to perform iterative calculations on the simulation parameters in the discretized airflow simulation function; the processing unit is also used to stop the iterative calculations when the residual of the airflow simulation function is less than a preset residual, and to determine the iteratively calculated airflow simulation function as the airflow simulation model.

[0021] Thirdly, an opening size determination device is provided, which can realize the functions performed by the opening size determination device in the above aspects or possible designs. The functions can be implemented by hardware. For example, in one possible design, the opening size determination device may include a processor and a communication interface. The processor can be used to support the opening size determination device in realizing the functions involved in the first aspect or any possible design of the first aspect.

[0022] In another possible design, the aperture size determining device may further include a memory for storing necessary computer execution instructions and data. When the aperture size determining device is in operation, the processor executes the computer execution instructions stored in the memory to cause the aperture size determining device to perform the first aspect or any of the possible aperture size determining methods described above.

[0023] Fourthly, a computer-readable storage medium is provided, which may be a readable non-volatile storage medium storing computer instructions or programs that, when executed on a computer, enable the computer to perform the first aspect or any of the possible aperture size determination methods described above.

[0024] Fifthly, a computer program product containing instructions is provided, which, when run on a computer, enables the computer to execute the aperture size determination method of the first aspect or any possible design of the above aspects.

[0025] A sixth aspect provides an electronic device comprising one or more processors and one or more memories. The one or more memories are coupled to the one or more processors, and the one or more memories are used to store computer program code, including computer instructions, which, when executed by the one or more processors, cause the electronic device to perform the aperture size determination method as described in the first aspect or any possible design of the first aspect.

[0026] In a seventh aspect, a chip system is provided, including a processor and a communication interface, which can be used to implement the functions performed by the aperture size determining device in the first aspect or any possible design of the first aspect. In one possible design, the chip system further includes a memory for storing program instructions and / or data. The chip system may be composed of chips or may include chips and other discrete devices, without limitation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a hole size determination system provided in an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the structure of an opening size determination device provided in an embodiment of this application;

[0029] Figure 3 A flowchart illustrating a method for determining the opening size provided in an embodiment of this application;

[0030] Figure 4 A schematic diagram of a simulated internal airflow velocity vector cloud map of a target area on the YZ plane, provided for an embodiment of this application;

[0031] Figure 5 A schematic diagram of a simulated internal airflow velocity vector cloud map of a target area on the XZ plane, provided for an embodiment of this application;

[0032] Figure 6A schematic diagram of a simulated internal wind pressure vector cloud map of a target area on the YZ plane, provided for an embodiment of this application;

[0033] Figure 7 A schematic diagram of a simulated internal wind pressure vector cloud map of a target area on the XZ plane, provided for an embodiment of this application;

[0034] Figure 8 A flowchart illustrating another method for determining the opening size provided in an embodiment of this application;

[0035] Figure 9 This is a schematic diagram of a model mesh generation process provided in an embodiment of this application;

[0036] Figure 10 This is a schematic diagram of another opening size determination device provided in an embodiment of this application. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solutions of this disclosure, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0038] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this application as detailed in the appended claims.

[0039] It should also be understood that the term "comprising" indicates the presence of the described feature, whole, step, operation, element and / or component, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements and / or components.

[0040] First, the terms used in this application will be explained.

[0041] 1. Stocker Equipment: This is an automated storage subsystem in semiconductor factories, featuring multi-level storage space. Specifically designed for semiconductor wafer fabs, it automates the storage, retrieval, and transfer of wafer storage boxes of various sizes to facilitate the flow of wafers between different processes. In recent years, the cleanliness requirements for the stocker's internal environment have become increasingly stringent (e.g., Class 100, Class 10, etc.).

[0042] 2. Vortex: refers to the phenomenon of rotating flow in a gas. When a part of the gas moves in a rotating manner and rotates around a central axis, an air vortex is formed. Vortexes are generally continuous.

[0043] The generation of eddies is mainly related to pressure differences, velocity differences, and density differences. When a pressure difference exists in a gas, it causes gas flow; the greater the pressure difference, the stronger the gas flow and the more pronounced the eddies. When a velocity difference exists in a gas, shear force is generated, causing gas flow; the greater the velocity difference, the stronger the shear force and the more pronounced the eddies. When a density difference exists in a gas, it causes gas to rise or sink, thus forming eddies; the greater the density difference, the faster the gas rises or sinks, and the more pronounced the eddies. Inside semiconductor equipment, the presence of eddies can cause contaminants to accumulate at the eddy points, reducing internal cleanliness. Therefore, the formation of eddies should be avoided as much as possible inside semiconductor equipment.

[0044] In the semiconductor chip manufacturing process, ensuring the yield of semiconductor chips requires maintaining the cleanliness of the area where the semiconductor equipment is located. To improve the cleanliness of this area, fans can be installed to prevent contaminants from entering the environment and to control airflow to remove contaminants generated by the semiconductor equipment.

[0045] For example, in the early days of the semiconductor industry, wafers were small, and handling and placement could be done manually. However, with the advent of Moore's Law, wafer sizes have increased dramatically to achieve the goal of reducing the cost per bit of memory by 20%-30% annually. Manual handling of wafer cassettes and placement of wafers remains costly. Furthermore, given a fixed fan speed, the opening size of the air outlet in the area where semiconductor equipment is located affects airflow and consequently, the cleanliness of that area. Determining the appropriate outlet opening size to ensure the cleanliness of the area containing semiconductor equipment is a pressing technical problem that needs to be solved.

[0046] To ensure the cleanliness level of the target area where the target equipment is located, the air pressure difference within the target area should be within a preset range. The main purpose of separating cleanrooms of different classes, or between cleanrooms and non-cleanrooms, is to ensure the cleanliness of the target area where the target equipment is located, prevent contaminants from entering, and control airflow to remove contaminants generated within the target area.

[0047] High-level cleanrooms typically require a positive pressure differential, meaning the pressure inside the equipment must be higher than the pressure inside lower-level cleanrooms. This effectively prevents contaminants from the lower-level cleanroom from entering the higher-level cleanroom. This positive pressure differential is achieved by supplying an additional amount of air to the cleanroom. Within a limited space, the excess air increases the internal pressure of the equipment, causing air to flow from the higher-level cleanroom to the lower-level cleanroom. This airflow carries away contaminants from the equipment, thus maintaining the cleanliness of the higher-level cleanroom. By setting a reasonable pressure differential, the direction and speed of airflow can be controlled.

[0048] In view of this, embodiments of this application provide a method for determining the opening size, including: inputting the simulated opening size of the air outlet in the target area where the target device is located into an airflow simulation model to obtain simulated airflow parameters of the target area; the simulated airflow parameters are used to simulate the airflow movement in the target area; the simulated airflow direction in the target area is determined according to the simulated airflow parameters; and when the simulated airflow direction in the target area flows from the inside of the target area to the outside of the target area and there is no vortex inside the target area, the simulated opening size is determined as the actual opening size.

[0049] The methods provided in the embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0050] It should be noted that the network system described in the embodiments of this application is for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and does not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network systems and the emergence of other network systems, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0051] Figure 1 The diagram shown is a structural schematic of an opening size determination system 10 provided in an embodiment of this application. Figure 1 As shown, the opening size determination system 10 may include an opening size determination device 11 and a terminal device 12.

[0052] The opening size determining device 11 and the terminal device 12 are connected. For example, the opening size determining device 11 and the terminal device 12 can be connected via a wired connection. Alternatively, the opening size determining device 11 and the terminal device 12 can be connected wirelessly.

[0053] In this application, the opening size determining device 11 can be an electronic device with processing capabilities, such as a computer or server. It is used to determine the opening size of the air outlet in a target area. For example, the opening size determining device 11 can be a computer, server, etc. The server can be a single server or a server cluster consisting of multiple servers. In some embodiments, the server cluster can also be a distributed cluster. This application does not limit the specific technology, quantity, or form of the opening size determining device 11.

[0054] The terminal device 12 involved in the embodiments of this application can also be referred to as a terminal, mobile station (MS), mobile terminal (MT), etc. For example, the terminal device 12 can be a computer, smartphone, pocket personal computer (PPC), handheld computer, personal digital assistant (PDA), laptop computer, tablet computer, or wearable device, etc. The embodiments of this application do not limit the specific technology, quantity, or form of the terminal device 12.

[0055] In practical implementation, Figure 1 Each device in the process can be adopted Figure 2 The shown composition structure, or including Figure 2 The components shown. Figure 2 This is a schematic diagram of an aperture size determination device 200 provided in an embodiment of this application. The aperture size determination device 200 can be a network device, or it can be a chip or system-on-a-chip within the network device. Figure 2 As shown, the aperture size determination device 200 includes a processor 201, a communication interface 202, and a communication line 203.

[0056] Furthermore, the aperture size determination device 200 may also include a memory 204. The processor 201, memory 204, and communication interface 202 can be connected via a communication line 203.

[0057] The processor 201 can be a CPU, a general-purpose processor, a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD), or any combination thereof. The processor 201 can also be other devices with processing capabilities, such as circuits, devices, or software modules, without limitation.

[0058] Communication interface 202 is used to communicate with other devices or other communication networks. Communication interface 202 can be a module, circuit, communication interface, or any device capable of enabling communication.

[0059] Communication line 203 is used to transmit information between the components included in the aperture size determination device 200.

[0060] Memory 204 is used to store instructions. These instructions can be computer programs.

[0061] The memory 204 can be a read-only memory (ROM) or other type of static storage device that can store static information and / or instructions; it can also be a random access memory (RAM) or other type of dynamic storage device that can store information and / or instructions; it can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, etc., without limitation.

[0062] It should be noted that the memory 204 can exist independently of the processor 201 or can be integrated with the processor 201. The memory 204 can be used to store instructions, program code, or some data, etc. The memory 204 can be located inside or outside the aperture size determining device 200, without limitation. The processor 201 is used to execute the instructions stored in the memory 204 to implement the aperture size determining method provided in the following embodiments of this application.

[0063] In one example, processor 201 may include one or more CPUs, for example, Figure 2 CPU0 and CPU1 in the CPU.

[0064] As an optional implementation, the aperture size determining device 200 includes multiple processors, for example, besides Figure 2 In addition to processor 201, it may also include processor 205.

[0065] It should be pointed out that, Figure 2 The composition shown does not constitute a basis for the interpretation of this invention. Figure 1 The limitations of each device in the process, except Figure 2 In addition to the components shown, Figure 1 The various devices in the can include ratio Figure 2 More or fewer components, or combinations of certain components, or different arrangements of components.

[0066] In this embodiment of the application, the chip system may be composed of chips or may include chips and other discrete devices.

[0067] Furthermore, the actions, terms, etc., involved in the various embodiments of this application can be referenced interchangeably without limitation. The message names or parameter names in the messages exchanged between the various devices in the embodiments of this application are merely examples, and other names may be used in specific implementations without limitation.

[0068] To facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" are not necessarily different.

[0069] It should be noted that, in this application, the terms "exemplary" or "for example" are used to indicate that something is being described as an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0070] In this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0071] The following is combined with Figure 1 The aperture size determination system shown herein describes the aperture size determination method provided in the embodiments of this application.

[0072] Figure 3 This is a flowchart illustrating a method for determining the opening size provided in an embodiment of this application, as shown below. Figure 3 As shown, the method includes the following steps S301-S303:

[0073] S301. Input the simulated opening size of the air outlet in the target area where the target device is located into the airflow simulation model to obtain the simulated airflow parameters of the target area.

[0074] The target device can be a Stocker device. Simulated airflow parameters are used to simulate airflow patterns within the target area. For example, these may include simulated internal airflow velocity and simulated internal wind pressure within the target area.

[0075] As one possible implementation, the opening size determination device can set the model parameters of the airflow simulation model, and after setting the model parameters, input the simulated opening size of the air outlet in the target area where the target device is located into the airflow simulation model to obtain the simulated airflow parameters of the target area.

[0076] It should be noted that the target equipment is also equipped with air supply vents. These vents can be located on the top of the target equipment. The air supply vents are equipped with a blower (such as an axial flow fan).

[0077] It should be noted that model parameters may include the dimensions of the target device, such as its height (H), length (L), and width (W).

[0078] In some embodiments, the opening size determination device can input the opening ratio of the air outlet in the target area where the target device is located into the airflow simulation model to obtain the simulated airflow parameters of the target area.

[0079] in,

[0080] In some embodiments, when the target device is a Stocker device, the model parameters may also include the size and arrangement of the internal wafer storage cells.

[0081] In some embodiments, when the target device is a Stocker device, the aperture size determination device can also perform mesh generation, mesh independence analysis, and set computational domain and boundary conditions for the airflow simulation model.

[0082] In one example, the Stocker has a height H = 4600 mm, a width W = 1460 mm, and a length L = 7800 mm. To reduce unnecessary computation, the wafer storage cell is replaced with a 350 mm * 350 mm * 330 mm cuboid with chamfered edges and a chamfer radius of 150 mm. Based on the selected axial fan dimensions of 1167 mm * 572 mm, they are evenly distributed at the top of the airflow simulation model to achieve the maximum distribution ratio. The axial fan velocity V = 0.45 m / s, and the bottom opening area is 100 mm * 100 mm * 204. The axial fan inlet is defined as the velocity inlet, and the bottom opening is defined as the pressure outlet.

[0083] In the airflow simulation model, the solid domain is set to aluminum alloy, and the fluid domain is set to air. Mesh independence means that the calculation results no longer change with the mesh density. By selecting different numbers of meshes for calculation and observing the results, if the calculation results gradually stabilize with the increase of the number of meshes and no longer change significantly, then mesh independence can be determined. When selecting the mesh, a balance needs to be found between computational accuracy and computational resources. Denser meshes usually lead to more accurate results, but also increase the computational load and time.

[0084] In some embodiments, the simulated airflow parameters can be presented in the form of a cloud map.

[0085] For example, when the simulated airflow parameters are the simulated internal airflow velocity, the schematic diagram of the simulated internal airflow velocity vector cloud map of the target region on the YZ plane can be: Figure 4 As shown, a schematic diagram of the simulated internal airflow velocity vector cloud map of the target region on the XZ plane can be obtained. Figure 5 As shown.

[0086] For example, when the simulated airflow parameters are the simulated internal wind pressure, the schematic diagram of the simulated internal wind pressure vector cloud map of the target area on the YZ plane can be: Figure 6 As shown. A schematic diagram of the simulated internal wind pressure vector cloud map of the target area on the XZ plane can be obtained as follows. Figure 7 As shown.

[0087] S302. Determine the simulated airflow direction within the target area based on the simulated airflow parameters.

[0088] As one possible implementation, the aperture size determination device can determine the simulated airflow parameters of different sub-regions within the target area, and determine the simulated airflow direction of different sub-regions based on the simulated airflow parameters of different sub-regions within the target area, and determine the simulated airflow direction of sub-regions with a size greater than a preset ratio as the simulated airflow direction within the target area.

[0089] The preset ratio can be set as needed. For example, it can be set to 50%.

[0090] Different sub-regions within the target area can be cubes with a preset side length at different locations within the target area.

[0091] In one example, if the target area is 5 meters by 5 meters by 5 meters, and the sub-areas are cubes with a side length of 1 meter, then the target area can be divided into 5*5*5 = 125 sub-areas.

[0092] As another possible implementation, the opening size determination device can determine the simulated airflow direction of the air outlet in the target area based on the simulated airflow parameters, and determine the simulated airflow direction of the air outlet in the target area as the simulated airflow direction in the target area.

[0093] In some embodiments, the aperture size determining device can display simulated airflow parameters of the target area on the display interface, so that the operator can determine the simulated airflow direction in the target area based on the displayed simulated airflow parameters, and determine the simulated airflow direction in the target area upon receiving input from the operator.

[0094] The input operation can be used to indicate the simulated airflow direction within the indicator area.

[0095] S303. If the simulated airflow direction within the target area flows from the inside of the target area to the outside of the target area, and there are no vortices inside the target area, the simulated opening size is determined to be the actual opening size.

[0096] As one possible implementation, the aperture size determination device can display the simulated airflow parameters of the target area on the display interface, so that the operator can determine the simulated airflow direction in the target area and whether there are vortices inside the target area based on the displayed simulated airflow parameters. Upon receiving the operator's first input operation, it can determine that the simulated airflow direction in the target area flows from the inside of the target area to the outside of the target area and that there are no vortices inside the target area.

[0097] In some embodiments, the aperture size determining device can determine, upon receiving a second input operation from the operator, whether the simulated airflow direction within the target area flows from the outside of the target area to the inside of the target area, or whether there is a vortex inside the target area.

[0098] In some embodiments, when it is determined that the simulated airflow direction within the target area flows from the outside of the target area to the inside of the target area, or that there is a vortex inside the target area, the opening size determination device can determine a new simulated opening size according to a preset step size, and determine whether the new simulated opening size can be used as the actual opening size based on the above steps.

[0099] The preset step size can be set as needed. For example, it can be 1 square centimeter.

[0100] In some embodiments, if the simulated airflow direction within the target area is determined to be from the outside of the target area to the inside of the target area, or if there is a vortex inside the target area, the operator can re-enter a new simulated opening size, and the opening size determination device can determine whether the new simulated opening size can be used as the actual opening size based on the above steps.

[0101] As another possible implementation, the aperture size determination device can determine whether there is a vortex in the target area based on the difference in simulated airflow parameters between adjacent sub-regions within the target area. If the simulated airflow direction in the target area flows from the inside of the target area to the outside of the target area and there is no vortex inside the target area, the simulated aperture size can be determined as the actual aperture size.

[0102] It should be noted that the specific details of this step can be found in the following sections, and will not be repeated here.

[0103] Based on the technical solution provided in this application, simulated airflow parameters for the target area are obtained by inputting the simulated opening size into the airflow simulation model. The simulated airflow direction within the target area is determined based on these parameters. Furthermore, if the simulated airflow direction within the target area flows from the inside to the outside of the target area, and no vortices exist within the target area, the simulated opening size is determined to be the actual opening size. Since the simulated airflow parameters are used to simulate the airflow movement within the target area, the presence of vortices and the simulated airflow direction in the target area can be determined through the simulated airflow movement. Based on the determination results, the opening size of the air outlet can be adjusted, improving the efficiency of determining the outlet opening size and ensuring the cleanliness of the area where the target equipment is located.

[0104] In one possible embodiment, in order to determine the simulated airflow direction within the target area based on the simulated airflow parameters, S303 in this application may further include the following S401.

[0105] S401. When the airflow velocity inside the simulation is greater than the airflow velocity outside the target area, determine the airflow direction of the target area to be from inside the target area to outside the target area.

[0106] The external airflow velocity outside the target area can be pre-input or obtained in real time by the airflow velocity sensor through the opening size determination device.

[0107] As one possible implementation, the aperture size determining device can determine the airflow direction of the target area from inside the target area to outside the target area when the airflow velocity in a sub-region exceeding a preset proportion within the target area is greater than the external airflow velocity outside the target area.

[0108] The preset ratio can be set as needed. For example, it can be set to 50%.

[0109] As another possible implementation, the opening size determining device can determine the airflow velocity of the air outlet in the target area, and if the airflow velocity of the air outlet in the target area is greater than the external airflow velocity outside the target area, determine the airflow direction of the target area to flow from the inside of the target area to the outside of the target area.

[0110] In one possible embodiment, in order to determine the simulated airflow direction within the target area based on the simulated airflow parameters, S303 in this application may further include the following S501.

[0111] S501. When the simulated internal wind pressure is greater than the external wind pressure outside the target area, determine the airflow direction of the target area from inside the target area to outside the target area.

[0112] As one possible implementation, the opening size determining device can determine the airflow direction of the target area from inside the target area to outside the target area when the internal wind pressure of a sub-region exceeding a preset proportion in the target area is greater than the external wind pressure outside the target area.

[0113] The preset ratio can be set as needed. For example, it can be set to 50%.

[0114] As another possible implementation, the opening size determining device can determine the internal wind pressure of the air outlet in the target area, and when the internal wind pressure of the air outlet in the target area is greater than the external wind pressure outside the target area, determine the airflow direction of the target area from the inside of the target area to the outside of the target area.

[0115] As another possible implementation, the aperture size determination device can determine the airflow direction of the target area from inside the target area to outside the target area when the simulated internal airflow velocity of the target area is greater than the external airflow velocity outside the target area and the simulated internal wind pressure is greater than the external wind pressure outside the target area.

[0116] In one possible embodiment, in order to determine the simulated airflow direction within the target area based on the simulated airflow parameters, S303 in this application may further include the following S601.

[0117] S601. Determine whether eddies exist in the target area based on the differences in simulated airflow parameters between adjacent sub-regions within the target area.

[0118] As one possible implementation, the aperture size determination device can determine the airflow velocity difference between adjacent sub-regions within the target area based on simulated airflow parameters. If the airflow velocity difference between adjacent sub-regions is less than an airflow velocity difference threshold, it is determined that no vortices exist within the target area. If the airflow velocity difference between adjacent sub-regions is greater than or equal to the airflow velocity difference threshold, it is determined that vortices exist within the target area.

[0119] The airflow velocity difference threshold can be set as needed. For example, it can be set to 1 meter per second.

[0120] In one example, the orifice size determining device can determine the simulated airflow velocity of the sub-region under test, and the simulated airflow velocities of the four adjacent regions of the sub-region under test. If the difference between the simulated airflow velocity of the sub-region under test and the simulated airflow velocities of the four adjacent regions is less than an airflow velocity difference threshold, the device can determine that no vortices exist within the target region. If any difference between the simulated airflow velocity of the sub-region under test and the simulated airflow velocities of the four adjacent regions is greater than or equal to the airflow velocity difference threshold, the device can determine that no vortices exist within the target region.

[0121] In some embodiments, the aperture size determining device can determine the wind pressure difference between different sub-regions, and determine that no vortex exists inside the target area if the wind pressure difference between adjacent sub-regions is less than a wind pressure difference threshold. If the wind pressure difference between adjacent sub-regions is greater than or equal to the wind pressure difference threshold, it is determined that vortex exists inside the target area.

[0122] In other embodiments, the aperture size determining device can determine the gas density difference between different sub-regions, and if the gas density difference between adjacent sub-regions is less than a gas density difference threshold, it determines that no vortex exists inside the target region. If the gas density difference between adjacent sub-regions is greater than or equal to the gas density difference threshold, it determines that vortex exists inside the target region.

[0123] It should be noted that the wind pressure difference threshold and the gas density difference threshold can be set as needed, and are not restricted here.

[0124] One possible implementation, Figure 8 A flowchart illustrating another method for determining the opening size provided in this application embodiment is shown below. Figure 8 As shown, in order to determine the airflow simulation model, the method for determining the opening size in this application may further include the following S701-S703.

[0125] S701. Discretize the airflow simulation function to obtain the discretized airflow simulation function.

[0126] The airflow simulation function can be a standard k-ε turbulence model. A standard k-ε turbulence model can include the turbulent kinetic energy equation (k) and the turbulent kinetic energy dissipation rate equation (ε).

[0127] The turbulent kinetic energy equation k can be expressed as Equation 1, and the turbulent kinetic energy dissipation rate equation ε can satisfy the following Equation 2:

[0128]

[0129] Where, μ t Indicates turbulent viscosity. C 1ε C 2ε C μ σ k σ ε This represents the model constants. For example, the model constants can be: C 1ε =1.44, C 2ε =1.92, C μ =0.09, σ k =1.0, σ ε =1.3. k represents turbulent kinetic energy. ρ represents the fluid density. t represents time, a physical quantity describing the change of turbulent kinetic energy over time. u represents the velocity vector. ε represents the turbulent dissipation rate, the rate at which turbulent kinetic energy is converted into internal energy per unit time; it describes the dissipation process of turbulent kinetic energy. P represents the turbulence generation rate, the rate at which kinetic energy is generated by some mechanism; it describes the generation process of turbulent kinetic energy. x represents the spatial coordinates.

[0130] As one possible implementation, the aperture size determination device can use the finite volume method to discretize the airflow simulation function to obtain the discretized airflow simulation function.

[0131] For example, the aperture size determination device can discretize the airflow simulation function using the conservation differential equation corresponding to the three-dimensional convection-diffusion equation through the finite volume method, and obtain the discretized airflow simulation function.

[0132] The finite volume method (FMD) is based on integral-form conservation equations, rather than differential equations. These equations describe the conservation of physical quantities in each control volume on the computational grid. The FMD emphasizes constructing discrete equations from a physical perspective, with each equation representing the conservation of a certain physical quantity over a finite volume. The basic idea of ​​the FMD is to divide the computational domain into a grid, ensuring that each grid point is surrounded by a unique control volume. By integrating the differential equations over each control volume, a set of discrete equations is obtained, where the unknowns are the dependent variables at the grid nodes. All approximations in the FMD have explicit physical meaning and guarantee global conservation. The conservation differential equations of the three-dimensional convection-diffusion equations can be expressed by the following formula:

[0133]

[0134] Where u, v, and w are the velocity components of the airflow in the x, y, and z directions, respectively. ρ represents the density of the fluid. The source term represents the net rate of generation or consumption of the matter function φ per unit volume, excluding convection and diffusion.

[0135] It should be noted that the first four terms on the left side of Equation 3 represent the convection term of the mass function φ, that is, the change in the mass function carried by fluid motion. The three terms on the right side of Equation 3 represent the diffusion term of the mass function φ, that is, the diffusion effect caused by the concentration gradient of the mass in space. The source term Sφ considers the change in the mass function φ caused by factors other than convection and diffusion.

[0136] Formula 3 uses divergence and gradient representations to satisfy the following Formula 4:

[0137]

[0138] in, The term representing the matter derivative is... (density ρ and The material derivative of the product of ( ) represents The rate of change of fluid over time, taking into account the motion of the fluid.

[0139] Represents the convection term, i.e. (density, velocity and) The divergence of the product of represents The net flow rate in space due to the movement of the fluid.

[0140] Represents the diffusion term, i.e. (conduction coefficient K and) The divergence of the product of gradients, representing The diffusion rate that occurs due to gradients (i.e. differences) in space.

[0141] Integrating Equation 4 over the control volume CV within the time step Δt, we obtain Equation 5 as follows:

[0142]

[0143] The physical meaning of this equation is: within the time interval Δt and the volume CV The changes, plus the flow rate through the control body surface during the Δt time interval, It equals the amount of diffusion through the surface of the control volume during the time interval Δt, plus the change in the source term of the control volume's CV during the time interval Δt.

[0144] It needs to be explained, such as Figure 9 As shown, the model mesh generation process can include the following S1-S12.

[0145] S1. Create geometry in a preset project.

[0146] The preset items are either items pre-stored in the airflow simulation model or newly created items in the airflow simulation model.

[0147] For example, the aperture size determination device can create geometry in an airflow simulation model based on the target device size.

[0148] The dimensions of the geometry are obtained by scaling down the dimensions of the target device proportionally.

[0149] S2. Optimize the geometry.

[0150] In one example, the aperture size determination device can modify or clean up the geometry after it has been created or imported to optimize the geometry.

[0151] The process of modifying or cleaning up geometry can be configured as needed. For example, it may include adjusting the shape, size, and position of the geometry, as well as deleting unnecessary parts or repairing damaged parts.

[0152] This ensures the accuracy and integrity of the geometry, providing a reliable foundation for subsequent mesh creation.

[0153] S3. Create a grid.

[0154] S4. Set components.

[0155] In this context, "component" refers to dividing a geometry into different parts in order to perform more refined meshing.

[0156] S5, Create a block.

[0157] The creation of blocks is used to define the mesh generation method and parameters. This ensures that the generated mesh meets the actual requirements and improves the accuracy and efficiency of the solution.

[0158] S6. Set the grid size, type, and division method.

[0159] The aperture size determination device can automatically set the size, type, and meshing method according to the complexity of the geometry and the solution requirements. The size of the mesh determines the accuracy and efficiency of the calculation, while the type of mesh (such as tetrahedron, hexahedron, etc.) and the meshing method (such as structured, unstructured, etc.) determine the adaptability of the mesh and the accuracy of the solution.

[0160] S7. View and edit the grid.

[0161] Editing the mesh can refer to adjusting the mesh shape, deleting unnecessary mesh cells, etc.

[0162] S8. Generate surface mesh.

[0163] S9. Automatically generate volume mesh.

[0164] S10, View and edit the grid.

[0165] S11, Solver settings.

[0166] After the mesh is created and edited, the solver needs to be configured for calculation. Solver configuration includes selecting the solver type and setting the solution parameters. This step is crucial because it ensures the correctness and efficiency of the solution process.

[0167] S12, Output the solution.

[0168] S702. Perform iterative calculations on the simulation parameters in the discretized airflow simulation function.

[0169] The simulation parameters can be set as needed. For example, they can be parameters for the velocity-pressure equations.

[0170] As one possible implementation, the aperture size determination device can utilize the SIMPLEC algorithm to iteratively calculate the velocity-pressure equation.

[0171] It should be noted that the SIMPLEC algorithm is a variant of the SIMPLE algorithm. Based on SIMPLE, it maintains the consistency of the equation by subtracting the corresponding terms from both sides of the velocity correction equation, thereby improving the stability and convergence speed of the computation.

[0172] By setting the convection term in the airflow simulation function to a second-order upwind scheme, the oscillations and errors in the numerical solution can be reduced by improving the interpolation method. Using the second-order upwind scheme to estimate the values ​​at unknown points from the values ​​at upstream points yields more accurate numerical results. The values ​​on the surface can be calculated using the following formula:

[0173]

[0174] in, This represents the center point value. This represents the upstream point value. Represents the value on the surface.

[0175] The target equipment is equipped with an axial flow fan (EFU) for air intake and an exhaust port for air outlet, satisfying the volumetric flow rate formula, which can be expressed as Formula Seven below:

[0176] Formula 7: V1S1 = V2S2

[0177] Where: V1 represents the airflow velocity at the inlet, which can be expressed in m / s; S1 is the inlet area, which can be expressed in m². 2 .

[0178] When the area of ​​the air outlet is small, meshing it can easily result in an excessive number of meshes, increasing the simulation calculation time. Therefore, simplifying it into a multi-hole step model can solve this problem.

[0179] The porous step plate model simplifies the originally complex perforated plate into a single plane, significantly reducing the number of meshes. The porous step momentum equation has an additional source term compared to the standard momentum equation. This source term represents the momentum dissipation, and the relationship between pressure drop and velocity can be obtained using this equation. This equation satisfies the following formula:

[0180]

[0181] in, This represents the viscous drag coefficient. L represents the length of the porous medium, for example, L can be 0.001 m. ρ represents the air density, for example, 1.225 kg / m³. 3 C2 represents the inertial drag coefficient. μ represents the dynamic viscosity of the fluid; for example, μ can be 1.7894 × 10⁻⁶. -5 Kg / (ms).

[0182] In one example, the airflow velocity within the target area where the target device is located is 0.45 m / s. During operation, the airflow velocity within the target area is greater than the external ambient airflow velocity. The pressure difference between the target area and the external airflow is approximately 5 Pa, meeting the clean environment requirements. Multiple cross-sections were selected for analysis, and vector lines were used to represent the airflow trajectory within the main equipment. Observation of the trajectory revealed the airflow pattern within the target area where the target device is located, with no vortex regions generated.

[0183] S703. If the residual of the airflow simulation function is less than the preset residual, stop the iterative calculation and determine the airflow simulation function after the iterative calculation as the airflow simulation model.

[0184] The preset residual can be set as needed. For example, it can be 10. -6 The calculation process for the residuals of the airflow simulation function can be found in existing techniques and will not be elaborated here.

[0185] This application embodiment can divide the aperture size determining device into functional modules or functional units according to the above method example. For example, each function can be divided into a separate functional module or functional unit, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or in software functional modules or functional units. The module or unit division in this application embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0186] When dividing each function into modules according to its corresponding function. Figure 10 A schematic diagram of another aperture size determination device 800 is shown. This aperture size determination device can be an aperture size determination device itself, or it can be a chip, processor, etc., applied in an aperture size determination device. This aperture size determination device 800 can be used to perform the functions of the aperture size determination device involved in the above embodiments. Figure 10 The aperture size determination device 800 shown may include: a processing unit 801 and a determination unit 802; the processing unit 801 is used to input the simulated aperture size of the air outlet in the target area where the target device is located into the airflow simulation model to obtain the simulated airflow parameters of the target area; the simulated airflow parameters are used to simulate the airflow movement in the target area; the determination unit 802 is used to determine the simulated airflow direction in the target area according to the simulated airflow parameters; the determination unit 802 is also used to determine the simulated aperture size as the actual aperture size when the simulated airflow direction in the target area flows from the inside of the target area to the outside of the target area and there is no vortex inside the target area.

[0187] Optionally, the determining unit 802 is specifically used to: determine the airflow direction of the target area from inside the target area to outside the target area when the airflow velocity inside the simulation is greater than the airflow velocity outside the target area.

[0188] Optionally, the determining unit 802 is further used to: determine the airflow direction of the target area from inside the target area to outside the target area when the internal wind pressure of the simulation is greater than the external wind pressure outside the target area.

[0189] Optionally, the determining unit 802 is also used to determine whether there are vortices in the target area based on the differences in simulated airflow parameters between adjacent sub-regions within the target area.

[0190] Optionally, the determining unit 802 is further used to: determine the wind pressure difference between adjacent sub-regions within the target area based on the simulated airflow parameters; and determine that there is no vortex inside the target area when the wind pressure difference between adjacent sub-regions is less than the wind pressure difference threshold.

[0191] Optionally, the determining unit 802 is further used to: determine the airflow velocity difference between adjacent sub-regions within the target area based on the simulated airflow parameters; and determine that there is no vortex inside the target area when the airflow velocity difference between adjacent sub-regions is less than the airflow velocity difference threshold.

[0192] Optionally, the processing unit 801 is further configured to discretize the airflow simulation function to obtain the discretized airflow simulation function; the processing unit 801 is further configured to perform iterative calculations on the simulation parameters in the discretized airflow simulation function; the processing unit 801 is further configured to stop the iterative calculations when the residual of the airflow simulation function is less than a preset residual, and to determine the iteratively calculated airflow simulation function as the airflow simulation model.

[0193] This application also provides a computer-readable storage medium. All or part of the processes in the above method embodiments can be executed by a computer program instructing related hardware. This program can be stored in the computer-readable storage medium, and when executed, it can include the processes of the above method embodiments. The computer-readable storage medium can be an internal storage unit of the aperture size determination device (including a data sending end and / or a data receiving end) of any of the foregoing embodiments, such as the hard disk or memory of the aperture size determination device. The computer-readable storage medium can also be an external storage device of the terminal device, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the terminal device. Further, the computer-readable storage medium can include both the internal storage unit of the aperture size determination device and an external storage device. The computer-readable storage medium is used to store the computer program and other programs and data required by the aperture size determination device. The computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

[0194] It should be noted that the terms "first" and "second," etc., in the specification, claims, and drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0195] It should be understood that in this application, "at least one (item)" means one or more, "more than one" means two or more, "at least two (items)" means two or three or more, and "and / or" is used to describe the relationship between related objects, indicating that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0196] Through the above description of the embodiments, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0197] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another apparatus, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0198] The units described as separate components may or may not be physically separate. A component shown as a unit can be one or more physical units; that is, it can be located in one place or distributed in multiple different locations. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0199] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0200] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solutions of the embodiments of this application, essentially, or the parts that contribute to the prior art, or all or part of the technical solutions, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0201] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for determining the size of an opening, characterized in that, The method includes: The simulated opening size of the air outlet in the target area where the target device is located is input into the airflow simulation model to obtain the simulated airflow parameters of the target area; the simulated airflow parameters are used to simulate the airflow movement in the target area. The simulated airflow direction within the target area is determined based on the simulated airflow parameters; If the simulated airflow direction within the target area flows from the inside of the target area to the outside of the target area, and there are no vortices inside the target area, then the simulated opening size is determined to be the actual opening size.

2. The method according to claim 1, characterized in that, The simulated airflow parameters include the simulated internal airflow velocity, and determining the simulated airflow direction within the target area based on the simulated airflow parameters includes: If the airflow velocity inside the simulation is greater than the airflow velocity outside the target area, the airflow direction in the target area is determined to be from inside the target area to outside the target area.

3. The method according to claim 1, characterized in that, The simulated airflow parameters also include simulated internal wind pressure. Determining the simulated airflow direction within the target area based on the simulated airflow parameters includes: When the internal wind pressure in the simulation is greater than the external wind pressure outside the target area, the airflow direction in the target area is determined to be from the inside of the target area to the outside of the target area.

4. The method according to claim 1, characterized in that, The method further includes: Based on the differences in simulated airflow parameters between adjacent sub-regions within the target area, it is determined whether the vortex exists in the target area.

5. The method according to claim 4, characterized in that, The step of determining whether the vortex exists in the target area based on the difference in simulated airflow parameters between adjacent sub-regions within the target area includes: The wind pressure difference between adjacent sub-regions within the target area is determined based on the simulated airflow parameters. If the wind pressure difference between adjacent sub-regions is less than the wind pressure difference threshold, it is determined that the vortex does not exist within the target region.

6. The method according to claim 4, characterized in that, The step of determining whether the vortex exists in the target area based on the difference in simulated airflow parameters between adjacent sub-regions within the target area includes: The airflow velocity difference between adjacent sub-regions within the target area is determined based on the simulated airflow parameters. If the airflow velocity difference between adjacent sub-regions is less than the airflow velocity difference threshold, it is determined that no vortex exists within the target region.

7. The method according to any one of claims 1-6, characterized in that, The method further includes: Discretize the airflow simulation function to obtain the discretized airflow simulation function; The simulation parameters in the discretized airflow simulation function are iteratively calculated. If the residual of the airflow simulation function is less than the preset residual, the iterative calculation is stopped, and the airflow simulation function after the iterative calculation is determined as the airflow simulation model.

8. A device for determining the opening size, characterized in that, The device includes: a processing unit and a determination unit; The processing unit is used to input the simulated opening size of the air outlet in the target area where the target device is located into the airflow simulation model to obtain the simulated airflow parameters of the target area; the simulated airflow parameters are used to simulate the airflow movement in the target area. The determining unit is used to determine the simulated airflow direction within the target area based on the simulated airflow parameters; The determining unit is further configured to determine the simulated opening size as the actual opening size when the simulated airflow direction within the target area flows from inside the target area to outside the target area and there is no vortex inside the target area.

9. A computer-readable storage medium, characterized in that, The readable storage medium stores instructions that, when executed, implement the method as described in any one of claims 1-7.

10. An electronic device, characterized in that, include: The electronic device includes a processor, memory, and a communication interface; wherein the communication interface is used for communication between the electronic device and other devices or networks. The memory is used to store one or more programs, the one or more programs including computer-executable instructions, which, when the electronic device is running, are executed by the processor to execute the computer-executable instructions stored in the memory to cause the electronic device to perform the method of any one of claims 1-7.

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