Method and system for solving multi-group neutron diffusion equation of reactor core of nuclear reactor
The invention provides a method and system for solving a nuclear reactor core multi-group neutron diffusion equation, and relates to the technical field of nuclear reactor core calculation. The method comprises the following steps: reconstructing a nuclear reactor multi-group neutron diffusion equat...
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Main Authors | , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
23.06.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The invention provides a method and system for solving a nuclear reactor core multi-group neutron diffusion equation, and relates to the technical field of nuclear reactor core calculation. The method comprises the following steps: reconstructing a nuclear reactor multi-group neutron diffusion equation into an elliptic partial differential equation, determining a coefficient matrix of the equation according to boundary conditions of the nuclear reactor multi-group neutron diffusion equation, and performing grid division on an established geometric model of a nuclear reactor core by using an unstructured grid so as to construct a core grid model; accurate simulation of the transient process of the reactor core neutrons in any geometrical shape is realized; a calculation method for establishing a multi-group diffusion equation based on the coefficient matrix and the reactor core grid model and a calculation method for calculating multi-group neutron macroscopic section parameters of the nuclear reactor and subs |
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Bibliography: | Application Number: CN202310132524 |