A fast neutron reactor full-stack subchannel geometric modeling method and system

A geometric modeling and sub-channel technology, applied in the field of reactor geometric modeling, can solve the problems of complex fast reactor core structure, difficulty in expressing relevant position coordinates, and difficult geometric information of thermal fluid, etc., to achieve complex structure and simple solution Effect

Active Publication Date: 2021-10-12
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a fast neutron reactor full-reactor subchannel geometric modeling method and system to solve the complex structure of the fast reactor core, the difficulty of expressing the relevant position coordinates and the large-scale parallel calculation of the thermal fluid. Problems with Difficult Geometric Information

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  • A fast neutron reactor full-stack subchannel geometric modeling method and system
  • A fast neutron reactor full-stack subchannel geometric modeling method and system
  • A fast neutron reactor full-stack subchannel geometric modeling method and system

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no. 1 example

[0075] This embodiment provides a geometric modeling method for the sub-channels of the whole fast neutron reactor, so as to realize a geometric modeling method for the whole core of the hexagonal fast reactor.

[0076] Each component of the fast reactor core is composed of dozens or hundreds of fuel rods arranged in a hexagonal shape. For more precise calculations, the area surrounded by three rods is generally regarded as a sub-channel, and most of the sub-channels are in the center of an equilateral triangle. channel, but the surrounding boundary near the wall of the box is an irregular shape, which is called side channel and corner channel. Calculate the center coordinates of each component, rod bundle, and sub-channel, use the geometric positional relationship of the core to find out the corresponding functional relational expression, and substitute in the functional relational expression to obtain the center position coordinates. When solving, the outermost sub-channel T...

no. 2 example

[0186] This embodiment provides a fast neutron reactor full-stack subchannel geometric modeling system, which includes:

[0187] The component coordinate calculation module is used to calculate the central coordinates of the central rod bundle of each component based on the first preset coordinate system, and store the central coordinates of the central rod bundle of each component in the first preset data structure;

[0188] The rod bundle coordinate calculation module is used to calculate the center coordinates of each rod bundle in each component based on the center coordinates of the central rod bundles of each component based on the second preset coordinate system, and calculate the center coordinates of each rod bundle by storing the second preset data structure;

[0189] The sub-channel coordinate calculation module is used to calculate the center coordinates of the current sub-channel according to the center coordinates of the rod bundles surrounding the current sub-ch...

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Abstract

The present invention provides a fast neutron reactor full-reactor sub-channel geometric modeling method and system, the method includes: taking the first preset coordinate system as a reference, calculating the center coordinates of the central rod bundle of each component, and The center coordinates of the central rod bundles of the components are stored in the first preset data structure; the center coordinates of each rod bundle in each component are calculated based on the center coordinates of the central rod bundles of each component based on the second preset coordinate system , store the center coordinates of each rod bundle in the second preset data structure; calculate the center coordinates of the current sub-channel according to the center coordinates of the rod bundles surrounding the current sub-channel, and store the center coordinates of each sub-channel in the third preset data structure Structure storage. The geometric modeling method of the whole reactor sub-channel of the present invention can solve the problems of complex fast reactor core structure, difficult representation of relevant position coordinates and difficult geometric information required for large-scale parallel calculation of thermal fluid.

Description

technical field [0001] The invention relates to the technical field of reactor geometric modeling, in particular to a fast neutron reactor full-reactor sub-channel geometric modeling method and system for parallel simulation of fast reactor thermal fluid. Background technique [0002] The core of a fast neutron reactor is usually composed of tens / hundreds of components, and each component is composed of tens / hundreds of fuel rods, arranged in a hexagonal shape, and the core structure is complex. In order to realize the thermal fluid simulation of the whole core accurate to each sub-channel, after dividing the sub-channels of the fast reactor hexagonal components and numbering all the rod bundles, components and sub-channels in the core, it is necessary to complete the fast reactor Geometric modeling, that is, calculate the center position coordinates of each component, rod bundle and sub-channel according to the information such as component spacing, rod bundle radius and sp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F30/18
Inventor 郭苏萱蔡银宇卢旭周志锋刘天才杨文胡长军
Owner UNIV OF SCI & TECH BEIJING
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