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Method and system for automatic generation of large-scale grids for fast neutron reactor full-core structure

A core structure, automatic generation technology, applied in CAD numerical modeling, special data processing applications, geometric CAD, etc., can solve problems such as insufficient memory

Active Publication Date: 2022-06-24
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a large-scale grid automatic generation method and system for the whole core structure of a fast neutron reactor to solve the problem of insufficient memory in the existing grid division method when performing large-scale grid division

Method used

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  • Method and system for automatic generation of large-scale grids for fast neutron reactor full-core structure
  • Method and system for automatic generation of large-scale grids for fast neutron reactor full-core structure
  • Method and system for automatic generation of large-scale grids for fast neutron reactor full-core structure

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no. 1 example

[0062] This embodiment provides a method for automatically generating a large-scale grid of a fast neutron reactor full-core structure. The method can be implemented by an electronic device, and the electronic device can be a terminal or a server. like figure 1 As shown, the large-scale grid automatic generation method provided in this embodiment uses the numerical reactor geometry file library, the grid initial division and preprocessing method, and the large-scale parallel grid data generation method, and the final output can be analyzed by the finite element solver. Calculated mesh input file. Specifically, the grid division idea is as follows:

[0063] 1) Assign a number to each component of the full core, and enter the number of the required component by filling in the control card;

[0064] 2) According to the data input in the control card, export the geometric model files of the required components from the geometric file library, and only need to export the single-c...

no. 2 example

[0166] This embodiment provides a system for automatically generating large-scale grids with a full core structure of a fast neutron reactor, such as figure 1 As shown, the large-scale grid automatic generation system includes the following modules:

[0167] Numerical reactor geometry file library, used to store the geometric model files of various types of components to be meshed and the geometric positions of each component inside the core;

[0168] The grid initial division and preprocessing module is used to export the geometric model file of the component that needs to be meshed from the numerical reactor geometric file library, and perform parallel mesh division on the single-component geometric model file to obtain the current component. grid data;

[0169] The large-scale parallel grid data generation module is used to obtain the grid data of the current assembly and the geometric position of the current assembly inside the core based on the grid data of the ...

no. 3 example

[0172] This embodiment provides an electronic device, which includes a processor and a memory; wherein, at least one instruction is stored in the memory, and the instruction is loaded and executed by the processor to implement the method of the first embodiment.

[0173] The electronic device may vary greatly due to different configurations or performances, and may include one or more processors (central processing units, CPU) and one or more memories, wherein the memory stores at least one instruction, so The instructions are loaded by the processor and execute the above method.

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Abstract

The invention discloses a method and system for automatically generating a large-scale grid of the whole core structure of a fast neutron reactor. The geometric position of the interior; export the geometric model file of the required component from the numerical reactor geometric file library, and perform parallel grid division on the single component geometric model file to obtain the grid data of the current component; based on the grid of the current component The data and the geometric position of the current component are transformed through coordinate geometry to obtain the required grid data of the whole core or multiple components of the fast reactor. The invention can realize the modeling of the reactor core structure and complete large-scale parallel grid generation, and apply the grid data to finite element solving software to finally realize high-precision and high-efficiency simulation of the mechanical behavior of the reactor core structure.

Description

technical field [0001] The invention relates to the fields of nuclear science and engineering technology, high-performance computing, supercomputer-based high-fidelity numerical simulation, and finite element analysis, in particular to a method and system for automatic generation of large-scale grids of a fast neutron reactor full-core structure. Background technique [0002] Under the action of high temperature, fluid pressure, irradiation, etc., various parts of the reactor core assembly will be deformed to different degrees, and the fuel rods inside the assembly will undergo flow-induced vibration. These phenomena can cause cladding wear, difficult loading and unloading, component breakage, and fatigue damage to the core components. The study of component deformation and fuel rod flow-induced vibration in different environments is of great significance for ensuring the safe operation of the reactor. Due to the particularity of the arrangement of components inside the cor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/23G06F30/10G06F111/10
CPCG06F30/23G06F30/10G06F2111/10
Inventor 王昭顺蒋章程胡长军邢龙岳
Owner UNIV OF SCI & TECH BEIJING
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