2020 Annual Meeting

Presentation information

Oral presentation

III. Fission Energy Engineering » 301-1 Reactor Physics, Utilization of Nuclear Data, Criticality Safety

[2I12-15] Development of Analysis Method & Code 2

Tue. Mar 17, 2020 3:50 PM - 4:55 PM Room I (Lecture Bildg. M 2F M-23)

Chair:Hiroki Koike(MHI)

4:35 PM - 4:50 PM

[2I15] Extension of the hierarchical-domain decomposition boundary element method to the general multi-group diffusion equation

*Tian Qin1, Go Chiba1 (1. Hokkaido Univ)

Keywords:Boundary Element Method, HDD-BEM, Diffusion Equation, Complex Buckling

The hierarchical domain decomposition boundary element method (HDD-BEM) that was developed to solve the two-group diffusion equation and one-group SP3 equation is extended to deal with the multi-group diffusion equation. With the utilization of Python programming language, the current program can solve the one-dimensional problem with complex buckling value. By comparing it with the reference solution, the result indicates that the HDD-BEM has been extended and applied to tackle with multi-group diffusion equation successfully.