Reactor fuel performance analysis and calculation method and system, storage medium and equipment
A fuel performance and calculation method technology, applied in computer-aided design, calculation, nuclear power generation, etc., can solve problems such as program calculation distortion and program parameter transmission lag, and achieve high calculation accuracy and accuracy
Active Publication Date: 2021-09-17
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI +1
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[0005] For the problems referred to above, the object of the present invention is to provide a kind of calculation method, system, storage medium and equipment for the performance analysis of lead-based fast reactor oxide reactor fuel, which solves the hysteresis and the parameter transfer of previous programs under cross-time steps. Distortion problem of program calculation
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[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.
[0042] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprisin...
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The invention relates to a reactor fuel performance analysis and calculation method and system, a storage medium and equipment, and the method comprises the steps: generating a time sequence of a to-be-analyzed fuel rod, and segmenting the geometric structure of the fuel rod into different axial segments in the axial direction; carrying out global calculation on the to-be-analyzed fuel rod in each time step, and carrying out thermal-mechanical coupling analysis; and performing local calculation on different axial segments of the fuel rod subjected to thermal-mechanical coupling analysis to realize multi-physics field analysis, wherein the multi-physics field includes fuel reconstitution, component redistribution, fission gas release and swelling, cladding corrosion, and core-cladding chemical interaction. According to the method, the problems of lagging of parameter transmission and distortion of program calculation under the cross-time step of the conventional program are solved. The method can be widely applied to the field of performance analysis of reactor fuel elements.
Description
technical field [0001] The invention relates to the field of performance analysis of reactor fuel elements, in particular to a calculation method, system, storage medium and equipment for performance analysis of lead-based fast reactor oxide reactor fuel. Background technique [0002] Under the complex service environment such as high temperature, high neutron fluence, and violent nuclear and chemical reactions in the reactor, the fuel element undergoes evolution from the microscopic atomic scale to the macroscopic structural scale, and at the same time undergoes neutron Learning feeds back into decades of service life. These special service conditions spanning multiple physical fields and large space-time scales lead to complex behavioral evolution of fuel elements. The accurate description of this problem involves many disciplines such as chemistry, physics, metallurgy, mechanics and materials, and its inherent nonlinear characteristics make pure analytical solution impos...
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IPC IPC(8): G06F30/20G06F111/10G06F119/08
CPCG06F30/20G06F2111/10G06F2119/08Y02E30/30
Inventor 王冠顾龙恽迪范大军王挺于锐王兆陶渝杰袁和王大伟张璐李金阳姜韦文俊苏兴康刘佳泰
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI