Aerodynamic noise source positioning simulation method, device and equipment and storage medium

Abstract

The invention discloses an aerodynamic noise source positioning simulation method, device and equipment and a storage medium, and belongs to the field of noise source prediction of an automobile air inlet system. Comprising the steps of establishing a fluid model according to a fluid domain of a target part, determining simulation functions, including a body noise source simulation function and a surface noise source simulation function, corresponding to the fluid model, initializing physical parameters and monitoring parameters of the simulation functions, obtaining a target simulation function to facilitate subsequent noise source simulation calculation, and finally performing noise source simulation calculation according to a simulation result. And determining the noise source position of the target part. According to the method, the position of the aerodynamic noise source is quickly simulated through the body noise source and surface noise source simulation functions, sound field coupling is not needed, and the simulation period is greatly shortened.

Description

Technical Field

[0001] The present application belongs to the field of automobile intake system noise source prediction, and specifically relates to a pneumatic noise source positioning simulation method, device, equipment and storage medium. Background Art

[0002] With the rapid development of the domestic and foreign automobile industries, people's requirements for automobile driving comfort are getting higher and higher. User demand is the driving force of the enterprise, so producing quiet and comfortable cars has become the goal pursued by many automobile manufacturers. Good noise, vibration and harshness (NVH) performance is the embodiment of the competitiveness of automobile companies, so major automobile companies at home and abroad have invested a lot of manpower and material resources in the research and development of NVH to improve the overall NVH performance of automobiles.

[0003] The common noise of automobile intake system comes from aerodynamic noise. In the prior art, usually, the noise evaluation of the simulated intake system needs to first simulate the flow field, and then give the flow field to the sound field for coupling simulation. However, this simulation cycle is long, and when multiple optimizations are required, the simulation cycle is too redundant. At this time, it is particularly important to quickly locate the noise source and optimize the design to shorten the overall optimization cycle.

[0004] This application can quickly simulate the location of aerodynamic noise sources through body noise source and surface noise source simulation functions without the need for sound field coupling, thereby greatly shortening the simulation cycle. This application is applicable to the simulation of all aerodynamic noise, not just limited to automobile intake systems. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a method for simulating the location of an aerodynamic noise source, aiming to solve the problem in the prior art that the evaluation of aerodynamic noise relies on coupled simulation, resulting in a long simulation cycle and low evaluation efficiency.

[0006] In order to solve the above technical problems, this application is implemented as follows: In a first aspect, an embodiment of the present application provides a method for simulating the location of an aerodynamic noise source, the method comprising: Establishing a fluid model according to the fluid domain of the target part, wherein the fluid model is a three-dimensional solid model corresponding to the fluid domain; Determine the simulation function corresponding to the fluid model, and initialize the physical parameters and monitoring parameters of the simulation function to obtain the target simulation function, wherein the simulation function includes a body noise source simulation function and a surface noise source simulation function, the physical parameters are physical quantities describing the fluid and the noise source, and the monitoring parameters are used to monitor the calculation process of the simulation function; Based on the target simulation function, obtain the simulation results corresponding to the fluid model; The noise source position of the target part is determined according to the simulation result, wherein the simulation result at least includes a noise cloud map.

[0007] Compared with the prior art, the above technical solution provided by the present application includes at least the following beneficial effects: The present application first establishes a fluid model according to the fluid domain of the target part, determines the simulation function corresponding to the fluid model, including the body noise source simulation function and the surface noise source simulation function, and initializes the physical parameters and monitoring parameters of the simulation function to obtain the target simulation function, which is convenient for subsequent noise source simulation calculations, and finally determines the noise source position of the target part according to the simulation results. The present application uses the body noise source and surface noise source simulation functions to quickly simulate the position of the aerodynamic noise source without the need for sound field coupling, which greatly shortens the simulation cycle.

[0008] In the above solution, further, the step of establishing a fluid model according to the fluid domain of the target part specifically includes: Build an initial fluid model based on the fluid domain of the target part; Preset initial meshing parameters; Meshing the initial fluid model based on the initial meshing parameters to obtain an intermediate mesh model; The intermediate grid model is standardized to obtain the corresponding fluid model.

[0009] In this scheme, after the initial fluid model of the pneumatic system is established, the initial fluid model is meshed and processed into multiple calculation units so that the data results can be intuitively observed in the subsequent flow field analysis process.

[0010] In the above scheme, further, the intermediate grid model is standardized to obtain the corresponding fluid model, including: Set target parsing data; In response to the initial meshing parameters, corresponding analytical data are obtained; Determine whether the parsed data is within the target parsed data range; If not, at least one of deletion, repair, and adjustment is performed on the grid.

[0011] In this solution, the grid is standardized, that is, quality control is performed to ensure the accuracy of the calculation during the fluid calculation process.

[0012] In the above scheme, further, the specific steps of determining the physical parameters and monitoring parameters of the simulation function include: Select various physical property values ​​according to the actual working conditions of the fluid to determine the physical parameters of the fluid; According to the actual working conditions of the noise source, various physical property values ​​are selected to determine the physical parameters of the noise source.

[0013] In this scheme, the physical parameters of fluid and noise are set to meet the actual working conditions so as to simulate the real flow field and noise environment.

[0014] In the above solution, further, the specific steps of determining the physical parameters and monitoring parameters of the simulation function include: Determine the initial conditions and stop conditions for simulation function calculation; Determine the standard range of parameter fluctuations when calculating simulation functions.

[0015] In this scheme, the monitoring parameters in the flow field simulation process are adjusted so as to have a clear dynamic understanding of the entire calculation process of the flow field simulation.

[0016] In the above scheme, further, after confirming the noise source position of the fluid model according to the simulation results, the step further includes: Preset the noise standard of the target part; Determine whether the simulation results are standard. If not, optimize the part design and repeat all steps.

[0017] In this scheme, based on the feedback of noise distribution results, an optimization scheme for parts can be further designed, and the optimal pneumatic system can be designed in the process of repeated iteration and optimization of the scheme.

[0018] In the above scheme, further, according to the fluid domain of the target part, after building the initial fluid model, the specific steps include: Conduct continuity checks on the initial fluid model; After the continuity check, the initial mesh parameters are set for the initial fluid model.

[0019] In this scheme, gaps between various components of the fluid model are avoided to affect the fluid simulation.

[0020] In a second aspect, an embodiment of the present application provides an aerodynamic noise source positioning simulation device, comprising: Modeling module, used to establish fluid model according to the fluid domain of the part; A simulation function module, used to determine the noise source simulation function corresponding to the fluid model; An initialization module is used to initialize the physical parameters and monitoring parameters of the simulation function to obtain the target simulation function; The analysis module is used to obtain simulation results according to the target simulation function and determine the location of the noise source according to the simulation results.

[0021] In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method of the first aspect.

[0022] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the method of the first aspect are implemented.

[0023] In a fifth aspect, an embodiment of the present application provides a chip, the chip including a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the method of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a flow chart of a simulation method for locating aerodynamic noise sources provided by some embodiments of the present application; Figure 2 is a schematic diagram of the structure of a pneumatic noise source positioning simulation device provided in some embodiments of the present application; Figure 3 is a schematic diagram of the structure of an electronic device provided by some embodiments of the present application; Figure 4 is a surface noise source distribution diagram provided by some embodiments of the present application; Figure 5 is a body noise source distribution diagram provided by some embodiments of the present application. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here. In addition, the "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.

[0027] The aerodynamic noise source positioning simulation method provided by the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0028] Reference Figure 1 In some embodiments of the present application, a method for simulating the location of an aerodynamic noise source is provided, comprising the following steps: Step S101: Establish a fluid model according to the fluid domain of the target part.

[0029] In some embodiments, a 3D model of the fluid region, i.e., a fluid model, is directly established using DM (2D modeling and 3D modeling), SolidWorks, CATIA, or UG and other 3D software. For parts such as mufflers, if the cavity can enter the fluid, the cavity structure needs to be retained; if the cavity is filled with sound-absorbing cotton and other materials, the cavity structure does not need to be retained, and the fluid model is established according to this principle.

[0030] In some embodiments, establishing a fluid model according to the fluid domain of the target part further includes meshing the fluid model.

[0031] When performing aerodynamic noise analysis, the setting of the boundary layer is very important. You can first preset the meshing parameters, including the basic size and boundary layer size, perform analytical calculations, and obtain data such as y+ and mesh frequency cutoff values. The y+ and mesh frequency cutoff values ​​can be used to determine whether the mesh size is reasonable.

[0032] Usually, the meshing parameters of the automobile intake system require that y+ is mostly within 10.

[0033] The mesh frequency cutoff value represents the frequency range that the mesh will be able to resolve in the noise source region close to the cylinder. If the mesh fails to resolve the desired frequencies, the mesh needs to be refined. For example, if the field function value is displayed as 1 kHz and the target resolved frequency value is 2 kHz, the mesh needs to be refined by a factor of 2.

[0034] In some embodiments, after checking that the mesh quality is good, the next step can be performed. If necessary, the inlet and outlet can be stretched.

[0035] Step S102: Determine the simulation function corresponding to the fluid model, and initialize the physical parameters and monitoring parameters of the simulation function to obtain the target simulation function.

[0036] It should be noted that the types of aerodynamic noise mainly include monopole noise sources, dipole noise sources and quadrupole noise sources. Among them, monopole noise is caused by the volume pulsation of air caused by the volume displacement of the vehicle, and its radiation characteristics are equivalent to point sound sources. The surface of the car can be regarded as rigid in the analysis of aerodynamic noise, so the noise of the monopole source can be approximated to zero. Therefore, the aerodynamic noise source of the car is mainly a dipole source. In the distribution of aerodynamic noise, the noise source includes the volume distribution of the quadrupole sound source and the surface distribution of the dipole sound source.

[0037] Furthermore, these models can be used to quantify the suitability of a mesh before performing transient calculations by analyzing the frequencies at which the mesh is resolvable.

[0038] It should be noted that in the near-field noise prediction, the broadband noise source simulation function is used to calculate the location and intensity of the main noise source. In the frequency domain, broadband noise has a continuous spectrum, in which the sound energy is continuously distributed at all frequencies within a given range.

[0039] In some embodiments, the broadband noise source simulation function uses the flow field physics of the Reynolds-averaged Navier–Stokes equations (RANS) turbulence simulation to calculate the location and intensity of the main noise sources. Since these broadband noises are simulated using RANS, the required calculation time is very short.

[0040] Depending on the noise source, the following broadband noise source simulation function can be used to estimate the local acoustic power: In some embodiments, it is necessary to set the physical parameters of the fluid properties according to the actual working conditions, including fluid density, dynamic viscosity, temperature and other related parameters.

[0041] For the properties of noise sources, we mainly focus on parameters such as far-field density, far-field sound velocity, and reference sound power to ensure the physical properties of the field source.

[0042] In some embodiments, it is necessary to initialize monitoring parameters of the simulation function, including flow field parameters, turbulence parameters, solution control, calculation monitoring, residual curve display, calculation stop criteria, etc.

[0043] For boundary conditions, the mass flow inlet or velocity inlet is generally given, and the outlet is generally given a pressure outlet. If a spherical fluid domain is to be added to the inlet, the inlet should be given a pressure inlet and the outlet should be given a flow outlet. At the same time, the initial temperature and pressure of the fluid also need to be set.

[0044] After completing all parameter settings and obtaining the target simulation function, you can proceed to the next step.

[0045] Step S103: Based on the target simulation function, obtain the simulation result corresponding to the fluid model.

[0046] The fluid model is calculated and solved based on the target simulation function to obtain a simulation result. Figure 4 , Figure 5 , where the simulation results at least include the surface noise source distribution cloud map and the body noise source distribution cloud map. The surface noise source distribution cloud map and the body noise source distribution cloud map can quickly locate the location of the high noise source without performing the acoustic field coupling calculation, and the simulation cycle will be about 1 / 5 of the coupling simulation.

[0047] Step S104: Determine the noise source position of the target part according to the simulation results.

[0048] According to the noise position shown in the cloud map in the previous step, check the velocity and pressure distribution at the corresponding position and upstream to find out where the flow field is not smooth or unstable, and evaluate whether there is room for further optimization and solutions. If the flow field can be made smoother by changing the structure of the target part, optimize the fluid model and restart the optimization solution analysis from the first step. If no obvious noise source is found, the current solution can be confirmed.

[0049] The present embodiment provides a method for simulating the location of a pneumatic noise source. First, a fluid model is established according to the fluid domain of the target part, and the simulation function corresponding to the fluid model is determined, including the body noise source simulation function and the surface noise source simulation function. The physical parameters and monitoring parameters of the simulation function are initialized to obtain the target simulation function, which is convenient for subsequent noise source simulation calculations. Finally, according to the simulation results, the position of the noise source of the target part is determined, and it is evaluated whether there is room for optimization in the structure of the target part to reduce aerodynamic noise. The present application uses the body noise source and surface noise source simulation functions to quickly simulate the position of the aerodynamic noise source without the need for sound field coupling, which greatly shortens the simulation cycle.

[0050] It should be noted that the aerodynamic noise source positioning simulation method provided in the embodiment of the present application can be executed by a pneumatic noise source positioning simulation device, or a control module in the pneumatic noise source positioning simulation device for executing the method for loading aerodynamic noise source positioning simulation. In the embodiment of the present application, the method for loading aerodynamic noise source positioning simulation by a pneumatic noise source positioning simulation device is taken as an example to illustrate the method for pneumatic noise source positioning simulation provided in the embodiment of the present application.

[0051] See also Figure 2 In some embodiments of the present application, a pneumatic noise source positioning simulation device is also provided, comprising: The modeling module is used to establish a fluid model according to the fluid domain of the part; specifically, it includes: Preset initial meshing parameters; Meshing the initial fluid model based on the initial meshing parameters to obtain an intermediate mesh model; The mesh model is standardized to obtain the fluid model.

[0052] Furthermore, the grid model is standardized to obtain a fluid model, including: Set target parsing data; In response to the initial meshing parameters, corresponding analytical data are obtained; Determine whether the parsed data is within the target parsed data range; If not, at least one of deletion, repair, and adjustment is performed on the grid.

[0053] For example, in some embodiments, the meshing parameters, including the basic size and the boundary layer size, are first preset, and analytical calculations are performed to obtain key flow field function values. Based on the target field function value, the result of the analytical calculation is compared to determine whether the mesh size is reasonable. If it is unreasonable, at least one of deletion, repair, and adjustment is performed on the mesh.

[0054] In some embodiments, the modeling module is also used to perform a continuity check on the fluid model, and after the continuity check passes, the fluid model is meshed.

[0055] A simulation function module, used to determine the noise source simulation function corresponding to the fluid model; For example, the following simulation function can be used to calculate a dipole noise source: The Curle model can be used to compute the noise of turbulent boundary layer flows over solids at low Mach numbers. Specifically, the model evaluates the local sound power (generated per unit surface) from a dipole noise source, that is, the noise from the fluctuating surface pressure acting on the solid boundary of the fluid. The model assumes isotropic turbulence. The Curle model is commonly used in Air Handling System (AHS) applications, which include rotating components (such as fans), heat exchangers, mufflers, distribution ducts, and wall enclosures.

[0056] For example, the following noise source model can be used to calculate a four-pole noise source: The Proudman model evaluates the local acoustic power (noise generated per unit volume) of a quadrupole noise source, such as the noise around fan blades. This model assumes isotropic turbulence. Similar to the Curle model, the Proudman model is often used in Air Handling System (AHS) applications, which include rotating components (such as fans), heat exchangers, and distribution ducts.

[0057] The initialization module is used to initialize the physical parameters and monitoring parameters of the simulation function to obtain the target simulation function; specifically, it includes: Select various physical property values ​​according to the actual working conditions of the fluid to determine the physical parameters of the fluid; According to the actual working conditions of the noise source, various physical property values ​​are selected to determine the physical parameters of the noise source.

[0058] Determine the initial conditions and stop conditions for simulation function calculation; Determine the standard range of parameter fluctuations when calculating simulation functions.

[0059] The analysis module is used to obtain simulation results according to the target simulation function and determine the location of the noise source according to the simulation results; specifically, it includes: Preset the noise standard of the target part; Determine whether the simulation results are standard. If not, optimize the part design and repeat all steps.

[0060] For example, in some embodiments, the analysis module is also used to perform flow field analysis. Based on the noise source simulation results, the physical state of the corresponding flow field is analyzed, such as the flow field pressure and velocity distribution near the noise source, and further evaluates whether there is room for optimization in the structure of the corresponding target part to improve the flow field and reduce noise. If there is no obvious noise source, the current solution is confirmed.

[0061] For example, looking at the Curle and Proudman sound power cloud map, the area with the highest relative sound power in the cloud map is the area where the noise source is generated, because as long as the gas moves, aerodynamic noise will be generated. The local high sound power area is the area that needs to be optimized.

[0062] The aerodynamic noise source positioning simulation device in the embodiment of the present application can be a device, or a component, integrated circuit, or chip in a terminal. The device can be a mobile electronic device or a non-mobile electronic device. Exemplarily, the mobile electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted electronic device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc. The non-mobile electronic device can be a server, a network attached storage (NAS), a personal computer (PC), etc., which is not specifically limited in the embodiment of the present application.

[0063] The aerodynamic noise source location simulation device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0064] The aerodynamic noise source positioning simulation device provided in the embodiment of the present application can achieve Figure 1 The various processes implemented by the aerodynamic noise source positioning simulation device in the method embodiment will not be described here to avoid repetition.

[0065] The present embodiment provides a pneumatic noise source positioning simulation device, including a modeling module for establishing a fluid model according to the fluid domain of a part; a simulation function module for determining the noise source simulation function corresponding to the fluid model; an initialization module for initializing the physical parameters and monitoring parameters of the simulation function to obtain a target simulation function; and an analysis module for obtaining a simulation result according to the target simulation function, and determining the position of the noise source according to the simulation result. The present application uses body noise source and surface noise source simulation functions to quickly simulate the position of the pneumatic noise source without the need for acoustic field coupling, which greatly shortens the simulation cycle, especially in the part design process that requires continuous iterative optimization, and plays an important role in improving the efficiency of the solution.

[0066] Optionally, an embodiment of the present application also provides an electronic device, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, each process of the above-mentioned aerodynamic noise source positioning simulation method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0067] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned aerodynamic noise source positioning simulation method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0068] The processor is the processor in the electronic device in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0069] The embodiment of the present application further provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned aerodynamic noise source positioning simulation method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0070] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0071] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0072] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods of each embodiment of the present application.

[0073] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A method for locating aerodynamic noise sources, characterized in that: The following steps are involved: Establishing a fluid model according to the fluid domain of the target part, wherein the fluid model is a three-dimensional model corresponding to the fluid domain; Determine a simulation function corresponding to the fluid model, and initialize physical parameters and monitoring parameters of the simulation function to obtain a target simulation function, wherein the simulation function includes a body noise source simulation function and a surface noise source simulation function, the physical parameters are physical quantities describing the fluid and the noise source, and the monitoring parameters are used to monitor the calculation process of the simulation function; Based on the target simulation function, obtaining a simulation result corresponding to the fluid model; The noise source position of the target part is determined according to the simulation result, wherein the simulation result at least includes a noise cloud map.

2. The aerodynamic noise source location simulation method according to claim 1, characterized in that: The step of establishing a fluid model according to the fluid domain of the target part specifically includes: Build an initial fluid model based on the fluid domain of the target part; Preset initial meshing parameters; Meshing the initial fluid model based on initial meshing parameters to obtain an intermediate mesh model; The intermediate grid model is standardized to obtain a corresponding fluid model.

3. The aerodynamic noise source location simulation method according to claim 2, characterized in that: The intermediate grid model is subjected to standardization processing to obtain a corresponding fluid model. The specific steps include: Set target parsing data; In response to the initial meshing parameters, obtaining corresponding analytical data; Determining whether the parsed data is within the target parsed data range; If not, at least one of deletion, repair, and adjustment is performed on the grid.

4. The aerodynamic noise source location simulation method according to claim 1, characterized in that: The specific steps of initializing the physical parameters and monitoring parameters of the simulation function include: Selecting multiple physical property values ​​according to the actual working conditions of the fluid to determine the physical parameters of the fluid; Various physical property values ​​are selected according to the actual working conditions of the noise source to determine the physical parameters of the noise source.

5. The aerodynamic noise source location simulation method according to claim 1, characterized in that: The specific steps of initializing the physical parameters and monitoring parameters of the simulation function include: Determining initial conditions and stop conditions for calculating the simulation function; Determine the standard range of parameter fluctuations when calculating the simulation function.

6. The aerodynamic noise source location simulation method according to claim 1, characterized in that: The step after confirming the noise source position of the fluid model according to the simulation result also includes: Presetting the noise standard of the target part; Determine whether the simulation result is standard. If not, optimize the part design and repeat all steps.

7. The aerodynamic noise source location simulation method according to claim 2, characterized in that: The specific steps after building the initial fluid model according to the fluid domain of the target part include: performing a continuity check on the initial fluid model; After the continuity check, the initial mesh parameters are set for the initial fluid model.

8. An aerodynamic noise source positioning simulation device, characterized in that: include: A modeling module, used for establishing a fluid model according to the fluid domain of the part; A simulation function module, used to determine a noise source simulation function corresponding to the fluid model; An initialization module, used to initialize the physical parameters and monitoring parameters of the simulation function to obtain a target simulation function; The analysis module is used to obtain a simulation result according to the target simulation function, and determine the position of the noise source according to the simulation result.

9. An electronic device, characterized in that: The method comprises a memory, a processor and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction is executed by the processor according to the steps of the aerodynamic noise localization simulation method as described in claims 1 to 7.

10. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the aerodynamic noise source positioning simulation method according to claims 1-7 are implemented.

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