Two-dimensional finite element neutronics stable state calculation method based on ICEM-CFD (The Integrated Computer Engineering and Manufacturing code for Computational Fluid Dynamics)
An ICEM-CFD and calculation method technology, applied in the field of ICEM-CFD-based two-dimensional finite element neutronics steady-state calculation, can solve problems such as difficult to achieve real geometric description, complex geometry of reactor core, and lack of universality
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Embodiment 1
[0041] In this embodiment, triangular elements are used to perform steady-state calculation of two-dimensional finite element neutronics based on ICEM-CFD.
[0042] 1. Use the CAD pre-processing software ICEM-CFD to make triangular or quadrilateral meshing of the two-dimensional core geometry, define each component of the two-dimensional core as a part, and give the part a material required for neutronics calculations No., prepare neutronics section parameters according to the material number.
[0043] Establish a two-dimensional core geometric model in ICEM-CFD, divide the core into a triangular grid, and output the grid in the LS-Dyna grid file format. The grid is divided into surface grids in the two-dimensional steady state calculation. And line grids, where surface grids are identified by ELEMENT_SHELL in ICEM-CFD output files, and line grids are identified by ELEMENT_BEAM in ICEM-CFD output files. The surface mesh is triangular, and the line mesh is straight.
[0044] Assign ...
Embodiment 2
[0084] In this embodiment, a quadrilateral element is used to perform steady-state calculation of two-dimensional finite element neutronics based on ICEM-CFD.
[0085] 1. Use the CAD pre-processing software ICEM-CFD to make triangular or quadrilateral meshing of the two-dimensional core geometry, define each component of the two-dimensional core as a part, and give the part a material required for neutronics calculations No., prepare neutronics section parameters according to the material number.
[0086] Establish a two-dimensional core geometric model in ICEM-CFD, divide the core into a quadrilateral grid, and output the grid in the LS-Dyna grid file format. In the two-dimensional steady-state calculation, the grid is divided into surface grids And line grids, where surface grids are identified by ELEMENT_SHELL in ICEM-CFD output files, and line grids are identified by ELEMENT_BEAM in ICEM-CFD output files. The surface mesh is quadrilateral, and the line mesh is straight.
[0087...
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