Modeling method for simulating plume phenomenon based on lumped parameter software of nuclear power containment

Abstract

The application provides a modeling method and device for simulating plume phenomenon based on a nuclear power containment lumped parameter software simulation, an electronic device and a storage medium. The nuclear power containment is modeled based on the nuclear power containment lumped parameter software to obtain a corresponding simulation container. The simulation container is divided into multiple control bodies. A control body in which an injection gas pipeline for generating the plume phenomenon is located is taken as a target control body. Based on a conical plume area corresponding to the injection gas, a conical body with a preset threshold angle is set. The injection gas is input into the conical body through an injection gas pipeline outlet in the target control body. The gas around the conical body is controlled to flow into the conical body and flow upwards together with the injection gas in the conical body, so as to simulate the plume phenomenon generated by the injection gas. Therefore, the plume phenomenon can be accurately modeled in the nuclear power containment lumped parameter software, and the rationality and accuracy of the simulation calculation result of the experiment by the nuclear power containment lumped parameter software are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear power, in particular to a modeling method and device for simulating plume phenomenon based on a lumped parameter software of a nuclear power containment, an electronic device and a storage medium. BACKGROUND

[0002] At present, an important and key step in the development process of nuclear power design and safety analysis software is to verify and evaluate the model of the developed software by using test data or nuclear power plant operation data. For the nuclear power containment software using the lumped parameter model, because it is approximately considered that the temperature distribution in a single control body during heat conduction is independent of coordinates and only changes with time, the mass and heat capacity of the fluid in the control body are considered to be concentrated at a point, therefore, the conventional plume calculation method cannot be applied to this. In the process of verifying and evaluating the software model by using test data or nuclear power plant operation data, in order to accurately simulate the transient thermal hydraulic behavior of the containment and simulate the phenomenon and response of the related accidents in the containment, the simulation of the plume phenomenon cannot be ignored. Therefore, in the process of modeling the test bench or nuclear power plant equipment, it is an urgent problem to be solved that a modeling method based on the lumped parameter software of the nuclear power containment is used to simulate the plume phenomenon. SUMMARY

[0003] The present application provides a modeling method and device for simulating plume phenomenon based on a lumped parameter software of a nuclear power containment, an electronic device and a storage medium.

[0004] The first aspect of the present application provides a modeling method for simulating plume phenomenon based on a lumped parameter software of a nuclear power containment, which comprises: modeling the nuclear power containment based on the lumped parameter software of the nuclear power containment to obtain a simulation container corresponding to the nuclear power containment; dividing the simulation container into a plurality of control bodies, and taking a control body in which an injection gas pipeline corresponding to an injection gas generating plume phenomenon is located as a target control body; based on a conical plume region corresponding to the injection gas, setting a conical body with a preset threshold angle, wherein the top end of the conical body is arranged in the target control body; inputting the injection gas into the conical body through the injection gas pipeline outlet in the target control body, and controlling the gas around the conical body to flow into the conical body and flow upward together with the injection gas in the conical body, so as to simulate the plume phenomenon generated by the injection gas.

[0005] In an embodiment of the present application, the method of dividing the simulation container into multiple control bodies and taking the control body in which the injection gas pipeline corresponding to the injection gas generating the plume phenomenon is located as a target control body comprises: obtaining the geometric size of the simulation container; performing grid division on the simulation container based on the geometric size to obtain multiple control bodies corresponding to the simulation container, and taking the control body in which the injection gas pipeline corresponding to the injection gas generating the plume phenomenon is located as a target control body.

[0006] In an embodiment of the present application, the method of setting a conical body with a preset threshold included angle based on the conical plume region corresponding to the injection gas generating the plume phenomenon, wherein the top end of the conical body is arranged in the target control body, comprises: obtaining the injection gas generating the plume phenomenon, and obtaining the flow rate of the injection gas; determining the conical motion trajectory of the injection gas based on the flow rate of the injection gas, and taking the conical motion trajectory as a conical plume region; and setting a conical body with a preset threshold included angle based on the conical plume region.

[0007] In an embodiment of the present application, the method further comprises: controlling the conical body to control the injection gas to be injected vertically upward into the conical body.

[0008] The present application proposes a modeling method for simulating the plume phenomenon based on the lumped parameter software of the nuclear power containment, which models the nuclear power containment based on the lumped parameter software of the nuclear power containment to obtain a corresponding simulation container, divides the simulation container into multiple control bodies, takes the control body in which the injection gas pipeline corresponding to the injection gas generating the plume phenomenon is located as a target control body, sets a conical body with a preset threshold included angle based on the conical plume region corresponding to the injection gas, inputs the injection gas into the conical body through the injection gas pipeline outlet in the target control body, controls the gas around the conical body to flow into the conical body, and flows upward together with the injection gas in the conical body to simulate the plume phenomenon generated by the injection gas, thereby achieving accurate modeling of the plume phenomenon in the lumped parameter software of the nuclear power containment, and improving the rationality and accuracy of the simulation calculation results of the experiment by the lumped parameter software of the nuclear power containment.

[0009] The third aspect of the present application provides a modeling device for simulating plume phenomenon based on a lumped parameter software of a nuclear power containment, the device comprising: a generating module configured to model the nuclear power containment based on the lumped parameter software of the nuclear power containment to obtain a simulation container corresponding to the nuclear power containment; a dividing module configured to divide the simulation container into a plurality of control bodies and take a control body in which an injection gas pipeline corresponding to an injection gas generating plume phenomenon is located as a target control body; a setting module configured to set a conical body with a preset threshold angle based on a conical plume region corresponding to the injection gas, wherein a top end of the conical body is arranged in the target control body; and a simulating module configured to input the injection gas into the conical body through an outlet of the injection gas pipeline in the target control body, and control the gas around the conical body to flow into the conical body and flow upward together with the injection gas in the conical body to simulate the plume phenomenon generated by the injection gas.

[0010] In an embodiment of the present application, the dividing module is specifically configured to: obtain a geometric size of the simulation container; perform grid division on the simulation container based on the geometric size to obtain a plurality of control bodies corresponding to the simulation container, and take a control body in which an injection gas pipeline corresponding to an injection gas generating plume phenomenon is located as a target control body.

[0011] In an embodiment of the present application, the setting module is specifically configured to: obtain the injection gas generating plume phenomenon and obtain a flow rate of the injection gas; determine a conical motion trajectory of the injection gas based on the flow rate of the injection gas, and take the conical motion trajectory as a conical plume region; and set a conical body with a preset threshold angle based on the conical plume region.

[0012] In an embodiment of the present application, the device further comprises a control module configured to control the injection gas to be injected vertically upward into the conical body.

[0013] The present application provides a modeling device for simulating plume phenomenon based on a lumped parameter software of a nuclear power containment, the device comprising: a generating module configured to model the nuclear power containment based on the lumped parameter software of the nuclear power containment to obtain a simulation container corresponding to the nuclear power containment; a dividing module configured to divide the simulation container into a plurality of control bodies and take a control body in which an injection gas pipeline corresponding to an injection gas generating plume phenomenon is located as a target control body; a setting module configured to set a conical body with a preset threshold angle based on a conical plume region corresponding to the injection gas, wherein a top end of the conical body is arranged in the target control body; and a simulating module configured to input the injection gas into the conical body through an outlet of the injection gas pipeline in the target control body, and control the gas around the conical body to flow into the conical body and flow upward together with the injection gas in the conical body to simulate the plume phenomenon generated by the injection gas, thereby achieving accurate modeling of plume phenomenon in the lumped parameter software of the nuclear power containment and improving the rationality and accuracy of simulation calculation results of the lumped parameter software of the nuclear power containment.

[0014] The fifth aspect of the present application provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the modeling method for simulating the plume phenomenon based on the lumped parameter software of the nuclear power containment in the embodiments of the present application.

[0015] The sixth aspect of the present application provides a computer program product, which, when executed by an instruction processor in the computer program product, implements the modeling method for simulating the plume phenomenon based on the lumped parameter software of the nuclear power containment in the embodiments of the present application.

[0016] The other effects of the optional mode described above will be described in the following in combination with specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a flowchart of a modeling method for simulating the plume phenomenon based on the lumped parameter software of the nuclear power containment provided by an embodiment of the present application;

[0018] Figure 2 FIG. 2 is a flowchart of another modeling method for simulating the plume phenomenon based on the lumped parameter software of the nuclear power containment provided by an embodiment of the present application;

[0019] Figure 3 FIG. 3 is a modeling example diagram for simulating the plume phenomenon based on the lumped parameter software of the nuclear power containment provided by an embodiment of the present application;

[0020] Figure 4 FIG. 4 is a structural diagram of a modeling device for simulating the plume phenomenon based on the lumped parameter software of the nuclear power containment provided by an embodiment of the present application;

[0021] Figure 5 FIG. 5 is a structural diagram of another modeling device for simulating the plume phenomenon based on the lumped parameter software of the nuclear power containment provided by an embodiment of the present application;

[0022] Figure 6 FIG. 6 is a block diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, in which the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0024] The modeling method, device and electronic device for simulating the plume phenomenon based on the lumped parameter software of the nuclear power containment according to the embodiments of the present application are described below with reference to the drawings.

[0025] Figure 1 is a flowchart of a modeling method for simulating plume phenomenon based on a lumped parameter software of a nuclear power containment according to an embodiment of the present application. It should be noted that the execution subject of the modeling method for simulating plume phenomenon based on a lumped parameter software of a nuclear power containment provided in this embodiment is a modeling device for simulating plume phenomenon based on a lumped parameter software of a nuclear power containment, which can be realized by software and / or hardware. The modeling device for simulating plume phenomenon based on a lumped parameter software of a nuclear power containment in this embodiment can be configured in an electronic device. The electronic device in this embodiment can include a server, and the electronic device is not limited in this embodiment.

[0026] Figure 1 is a flowchart of a modeling method for simulating plume phenomenon based on a lumped parameter software of a nuclear power containment according to an embodiment of the present application.

[0027] As shown in Figure 1 , the modeling method for simulating plume phenomenon based on a lumped parameter software of a nuclear power containment can include the following steps.

[0028] Step 101, modeling a nuclear power containment based on a lumped parameter software of a nuclear power containment to obtain a simulation container corresponding to the nuclear power containment.

[0029] In some embodiments, the lumped parameter software of a nuclear power containment can be a core and system integrated engine for design and analysis (COSINE), but is not limited thereto, and the embodiment is not limited in this regard.

[0030] In some embodiments, the shape of the nuclear power containment is irregular, and the related parameters of the nuclear power containment can be obtained from the production specification of the nuclear power containment. The related parameters are processed based on the lumped parameter software of a nuclear power containment to model the simulation container corresponding to the nuclear power containment.

[0031] Step 102, dividing the simulation container into a plurality of control volumes, and taking the control volume in which the injection pipeline of the injection gas generating the plume phenomenon is located as a target control volume.

[0032] In some embodiments, in a manner of implementing the target control body by dividing the simulation container into multiple control bodies and the control body where the injection gas pipeline corresponding to the injection gas generating the plume phenomenon is located, a manner of implementing the target control body can be: obtaining the geometric size of the simulation container, performing grid division on the simulation container based on the geometric size to obtain multiple control bodies corresponding to the simulation container, and taking the control body where the injection gas pipeline corresponding to the injection gas generating the plume phenomenon is located as the target control body.

[0033] The geometric size of the simulation container can be obtained by measurement, can be directly obtained from the production specification of the nuclear containment, and is not limited thereto.

[0034] The plume phenomenon can be a phenomenon that one fluid is injected into another fluid and flows therein. Specifically, the fluid in the container can be air, and the injection gas generating the plume phenomenon can be helium, but is not limited thereto.

[0035] In step 103, a conical body with a preset threshold included angle is set based on the conical plume region corresponding to the injection gas, wherein the top end of the conical body is arranged in the target control body.

[0036] In some embodiments, the conical plume region can be determined according to the motion trajectory corresponding to the injection gas, but is not limited thereto.

[0037] In some embodiments, the included angle of the conical body with the preset threshold included angle can be 20°, but is not limited thereto. In addition, the included angle of the conical body with the preset threshold included angle can also be fine-tuned by the relevant technical personnel in combination with the actual business needs, and the embodiment is not limited thereto.

[0038] The conical plume region is in communication with the surrounding multiple control bodies.

[0039] It can be understood that the conical plume region corresponding to the injection gas can be in communication with multiple control bodies. For example, the top end of the conical body is arranged in the target control body, and the input port of the conical body is arranged in two control bodies in communication with the target control body.

[0040] In step 104, the injection gas is input into the conical body through the injection gas pipeline outlet in the target control body, and the gas around the conical body is controlled to flow into the conical body and flow upward together with the injection gas in the conical body to simulate the plume phenomenon generated by the injection gas.

[0041] In some embodiments, the injection gas can be vertically injected upward into the conical body, and then the injection gas is input into the conical body through the injection gas pipeline outlet in the target control body to control the gas around the conical body to flow into the conical body and flow upward together with the injection gas in the conical body, thereby realizing the simulation of the plume phenomenon generated by the injection gas.

[0042] Specifically, the gas injection pipeline outlet in the target control body can be vertically upward output into the cone body, so that the plume internal gas flows upward, and the surrounding gas flows into the cone body, resulting in an increase in flow rate with an increase in height.

[0043] The gas surrounding the cone body is the initial gas in the original simulation container when the injected gas has not been injected, and is the mixed gas composed of the original gas and the injected gas when the injected gas is injected.

[0044] The application provides a modeling method for simulating plume phenomenon based on a nuclear power containment lumped parameter software simulation. The nuclear power containment is modeled based on the nuclear power containment lumped parameter software to obtain a corresponding simulation container. The simulation container is divided into a plurality of control bodies. A control body in which a gas injection pipeline corresponding to injected gas generating a plume phenomenon is located is taken as a target control body. A cone body with a preset threshold angle is set based on a conical plume region of the injected gas. The injected gas is input into the cone body through a gas injection pipeline outlet in the target control body. The gas surrounding the cone body is controlled to flow into the cone body and flow upward together with the injected gas in the cone body to simulate the plume phenomenon generated by the injected gas. Thus, accurate modeling of the plume phenomenon in the nuclear power containment lumped parameter software is realized, and the rationality and accuracy of simulation calculation results of the nuclear power containment lumped parameter software for experiments are improved.

[0045] Figure 2 FIG. 2 is a flowchart of another modeling method for simulating plume phenomenon based on a nuclear power containment lumped parameter software simulation according to an embodiment of the application.

[0046] In step 201, the nuclear power containment is modeled based on the nuclear power containment lumped parameter software to obtain a corresponding simulation container.

[0047] In step 202, the simulation container is divided into a plurality of control bodies. A control body in which a gas injection pipeline corresponding to injected gas generating a plume phenomenon is located is taken as a target control body.

[0048] It should be noted that the specific implementation of steps 201 to 202 can be understood with reference to the related description in the above embodiments.

[0049] In step 203, the injected gas generating a plume phenomenon is obtained, and the flow rate of the injected gas is obtained.

[0050] The two kinds of fluids generating a plume phenomenon cannot be too different in density, and cannot be homogeneous. For example, when the original gas in the simulation container is air, the injected gas can be helium. The embodiment is not limited in this regard.

[0051] Step 204, based on the flow rate of the injected gas, determine the conical motion trajectory of the injected gas, and take the conical motion trajectory as the conical plume region.

[0052] In some embodiments, based on the flow direction of the injected gas being vertically upward, the flow rate of the injected gas at the outlet of the injection pipe is relatively high, corresponding to a momentum-driven free jet, after moving a small distance upward, the speed decreases, and the free jet becomes a buoyancy-driven plume, thereby accurately determining the conical motion trajectory of the injected gas as the conical plume region.

[0053] Step 205, based on the conical plume region, set a conical body with a preset threshold angle.

[0054] In some embodiments, based on the conical plume region, a conical body with a preset threshold angle is set to simulate the corresponding plume phenomenon of the injected gas, making it possible to simulate the plume flow trajectory in the nuclear safety enclosure lumped parameter software.

[0055] Step 206, input the injected gas into the conical body through the injection pipe outlet in the target control body, and control the gas around the conical body to flow uniformly into the conical body and flow upward together with the injected gas in the conical body to simulate the plume phenomenon generated by the injected gas.

[0056] The present application proposes a modeling method for simulating plume phenomenon based on nuclear safety enclosure lumped parameter software, which models the nuclear safety enclosure based on the nuclear safety enclosure lumped parameter software to obtain a corresponding simulation container, divides the simulation container into multiple control bodies, takes the control body where the injection pipe for generating plume phenomenon is located as the target control body, obtains the injected gas for generating plume phenomenon, and obtains the flow rate of the injected gas. Based on the flow rate of the injected gas, the conical motion trajectory of the injected gas is determined, and the conical motion trajectory is taken as the conical plume region. Based on the conical plume region, a conical body with a preset threshold angle is set. The injected gas is input into the conical body through the injection pipe outlet in the target control body, and the gas around the conical body is controlled to flow uniformly into the conical body and flow upward together with the injected gas in the conical body to simulate the plume phenomenon generated by the injected gas. Thus, based on the conical plume region corresponding to the injected gas, a conical body for simulating plume phenomenon is accurately set to realize accurate modeling of plume phenomenon in the nuclear safety enclosure lumped parameter software.

[0057] In summary, the present application also proposes another modeling method for simulating plume phenomenon based on nuclear safety enclosure lumped parameter software, which is similar to the above method, but the difference is that Figure 3As shown, specifically, the nuclear power containment can be modeled by the nuclear power containment lumped parameter software first to obtain a simulation container, and then the simulation container is divided into 1, 2, 3,..., 26 control bodies, and the control body 22 is the control body where the injection gas pipeline corresponding to the injection gas generating the plume phenomenon is located, and then a conical body with a 20° included angle is set based on the conical plume area corresponding to the injection gas, wherein the top end of the conical body is arranged in the control body 22, the conical plume area further includes the control body 16 and the control body 19, and is in communication with the surrounding control bodies, and then the injection gas is input into the conical body through the injection gas pipeline outlet in the control body 22, and the gas around the conical body is controlled to flow into the conical body and flow upward together with the injection gas in the conical body, thereby gradually increasing the plume area by using the conical body to realize accurate simulation of the plume phenomenon generated by the injection gas.

[0058] The conical body inside can be divided into the control body 27, the control body 28, the control body 29 and the control body 30, the flow directions of the injection gas in the control body 27, the control body 28, the control body 29 and the control body 30 are all vertically upward, and the gas around the conical body can be injected horizontally into the conical body.

[0059] Figure 4 Figure 1 is a structural schematic diagram of a modeling device for simulating a plume phenomenon based on a nuclear power containment lumped parameter software provided by an embodiment of the present application.

[0060] As shown in Figure 4 Figure 4, the modeling device 400 for simulating a plume phenomenon based on a nuclear power containment lumped parameter software includes:

[0061] The generating module 401 is configured to model the nuclear power containment based on the nuclear power containment lumped parameter software to obtain a simulation container corresponding to the nuclear power containment.

[0062] The dividing module 402 is configured to divide the simulation container into a plurality of control bodies, and take the control body where the injection gas pipeline corresponding to the injection gas generating the plume phenomenon as a target control body.

[0063] The setting module 403 is configured to set a conical body with a preset threshold included angle based on a conical plume area corresponding to the injection gas, wherein the top end of the conical body is arranged in the target control body.

[0064] The simulation module 404 is configured to input the injection gas into the conical body through the injection gas pipeline outlet in the target control body, control the gas around the conical body to flow into the conical body, and flow upward together with the injection gas in the conical body, so as to simulate the plume phenomenon generated by the injection gas.

[0065] The application provides a modeling device for simulating plume phenomenon based on a lumped parameter software simulation of a nuclear power containment vessel. The nuclear power containment vessel is modeled based on a lumped parameter software simulation of the nuclear power containment vessel to obtain a corresponding simulation container. The simulation container is divided into a plurality of control bodies. A control body in which an injection gas pipeline for generating the plume phenomenon is located is taken as a target control body. Based on a conical plume region of the injection gas, a conical body with a preset threshold angle is set. The injection gas is input into the conical body through an injection gas pipeline outlet in the target control body, and the gas around the conical body is controlled to flow into the conical body and flow upward together with the injection gas in the conical body, so as to simulate the plume phenomenon generated by the injection gas. Therefore, the plume phenomenon is accurately modeled in the lumped parameter software simulation of the nuclear power containment vessel, and the rationality and accuracy of the simulation calculation result of the experiment by the lumped parameter software simulation of the nuclear power containment vessel are improved.

[0066] In an embodiment of the application, as shown in Figure 5 the division module 402 is specifically configured to:

[0067] obtain the geometric size of the simulation container.

[0068] perform grid division on the simulation container based on the geometric size to obtain a plurality of control bodies corresponding to the simulation container, and take a control body in which an injection gas pipeline for generating the plume phenomenon is located as a target control body.

[0069] In an embodiment of the application, as shown in Figure 5 the setting module is specifically configured to:

[0070] obtain the injection gas for generating the plume phenomenon, and obtain the flow rate of the injection gas.

[0071] determine a conical motion trajectory of the injection gas based on the flow rate of the injection gas, and take the conical motion trajectory as a conical plume region.

[0072] based on the conical plume region, set a conical body with a preset threshold angle.

[0073] In an embodiment of the application, as shown in Figure 5 the device further comprises:

[0074] the control module 405 is configured to control the injection gas to be vertically injected into the conical body.

[0075] The application provides a modeling device for simulating plume phenomenon based on a nuclear power containment lumped parameter software, and the nuclear power containment is modeled based on the nuclear power containment lumped parameter software to obtain a corresponding simulation container, the simulation container is divided into a plurality of control bodies, a control body where an injection gas pipeline corresponding to the injection gas generating the plume phenomenon is located is taken as a target control body, a conical body with a preset threshold angle is arranged based on a conical plume area corresponding to the injection gas, the injection gas is input into the conical body through an injection gas pipeline outlet in the target control body, the gas around the conical body is controlled to flow into the conical body, and the gas and the injection gas in the conical body flow upwards together, so as to simulate the plume phenomenon generated by the injection gas. Therefore, the plume phenomenon can be accurately modeled in the nuclear power containment lumped parameter software, and the rationality and accuracy of the simulation calculation result of the experiment by the nuclear power containment lumped parameter software are improved.

[0076] As shown in Figure 6 , it is a block diagram of an electronic device according to an embodiment of the application.

[0077] As shown in Figure 6 , the electronic device comprises:

[0078] The memory 601, the processor 602 and the computer instructions stored in the memory 601 and executable on the processor 602.

[0079] The processor 602 implements the modeling method for simulating the plume phenomenon based on the nuclear power containment lumped parameter software provided in the above embodiments when executing the instructions.

[0080] Further, the electronic device further comprises:

[0081] The communication interface 603 is used for communication between the memory 601 and the processor 602.

[0082] The memory 601 is used for storing computer instructions executable on the processor 602.

[0083] The memory 601 can include a high-speed RAM memory, and can also include a non-volatile memory, for example, at least one disk memory.

[0084] The processor 602 is used for implementing the modeling method for simulating the plume phenomenon based on the nuclear power containment lumped parameter software in the above embodiments when executing the program.

[0085] If the memory 601, the processor 602 and the communication interface 603 are implemented independently, the communication interface 603, the memory 601 and the processor 602 can be connected with each other through a bus and complete communication between each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, Figure 6 Only one thick line is used in the figure to represent the bus, but it does not mean that there is only one bus or only one type of bus.

[0086] Optionally, in a specific implementation, if the memory 601, the processor 602 and the communication interface 603 are integrated on a chip, the memory 601, the processor 602 and the communication interface 603 can complete communication between each other through an internal interface.

[0087] The processor 602 can be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement one or more embodiments of the present application.

[0088] In addition, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0089] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0090] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that changes, modifications, substitutions and variations can be made by those skilled in the art without departing from the scope of the present application.

Claims

1. A modeling method for plume phenomena based on lumped parameter software simulation of nuclear power plant containment, characterized in that, The method includes: The nuclear power containment vessel is modeled based on the lumped parameter software to obtain the simulated container corresponding to the nuclear power containment vessel; The simulation container is divided into multiple control bodies, and the control body containing the gas injection pipe that generates the plume phenomenon is taken as the target control body. Based on the conical plume region corresponding to the injected gas, a cone with a preset threshold angle is set, wherein the top of the cone is located in the target control body, including: acquiring the injected gas that generates the plume phenomenon and acquiring the flow velocity of the injected gas; determining the conical motion trajectory of the injected gas based on the flow velocity of the injected gas, and using the conical motion trajectory as the conical plume region; based on the conical plume region, setting a cone with a preset threshold angle, wherein the conical motion trajectory of the injected gas is determined as the conical plume region based on the vertical upward flow direction of the injected gas; The injected gas is introduced into the cone through the gas injection pipe outlet in the target control body, and the gas around the cone is controlled to flow into the cone and flow upward together with the injected gas in the cone to simulate the plume phenomenon generated by the injected gas.

2. The method according to claim 1, characterized in that, The step of dividing the simulation container into multiple control volumes, and taking the control volume containing the injection pipe corresponding to the injected gas that generates the plume phenomenon as the target control volume, includes: Obtain the geometric dimensions of the simulated container; The simulation container is meshed based on the geometric dimensions to obtain multiple control volumes corresponding to the simulation container, and the control volume where the injection pipe of the injected gas that generates the plume phenomenon is located is taken as the target control volume.

3. The method according to claim 1, characterized in that, The method further includes: The injected gas is controlled to be injected vertically upward into the cone-shaped body.

4. A modeling device for simulating plume phenomena based on lumped parameter software of nuclear power plant containment, characterized in that, The device includes: The generation module is used to model the nuclear power containment based on the lumped parameter software of the nuclear power containment to obtain the simulated container corresponding to the nuclear power containment. The partitioning module is used to divide the simulation container into multiple control bodies, and to take the control body where the gas injection pipe corresponding to the injected gas that generates the plume phenomenon is located as the target control body. The setting module is used to set a cone with a preset threshold angle based on the cone-shaped plume region corresponding to the injected gas, wherein the top of the cone is set in the target control body. Specifically, it is used to: acquire the injected gas that generates the plume phenomenon and acquire the flow velocity of the injected gas; determine the cone-shaped motion trajectory of the injected gas based on the flow velocity of the injected gas, and take the cone-shaped motion trajectory as the cone-shaped plume region; set a cone with a preset threshold angle based on the cone-shaped plume region, wherein the cone-shaped motion trajectory of the injected gas is determined as the cone-shaped plume region based on the vertical upward flow direction of the injected gas. The simulation module is used to input the injected gas into the cone through the gas injection pipe outlet in the target control body, and control the gas around the cone to flow into the cone and flow upward together with the injected gas in the cone, so as to simulate the plume phenomenon generated by the injected gas.

5. The apparatus according to claim 4, characterized in that, The partitioning module is specifically used for: Obtain the geometric dimensions of the simulated container; The simulation container is meshed based on the geometric dimensions to obtain multiple control volumes corresponding to the simulation container, and the control volume where the injection pipe of the injected gas that generates the plume phenomenon is located is taken as the target control volume.

6. The apparatus according to claim 4, characterized in that, The device further includes: The control module is used to control the injection of the gas vertically upward into the cone-shaped body.

7. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, when the processor executes the program, it implements the modeling method for plume phenomena based on software simulation of lumped parameters of nuclear power plant containment as described in any one of claims 1-3.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by the processor, the program implements the modeling method for plume phenomena based on the lumped parameters of the nuclear power plant containment as described in any of claims 1-3.

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