[1D11-15] Analysis Method

3:50 PM - 4:05 PM JST(6:50 AM - 7:05 AM UTC)

[1D12] Investigation of quadrature sets mapping algorithm in 1-dimensional SN calculation.

*Junshuang Fan¹, Go Chiba¹ (1. Hokkaido University, Faculty of Engineering, Division of Applied Quantum Science and Engineering)

Keywords:

SN method,quadrature set mapping,neutron transport calculation,one-dimensional planar

Quadrature set is fundamental of discrete ordinate method (S_Nmethod). A new method based on mapping quadrature sets in S_N calculation is developed and investigated with one-dimensional planer system. Two different orders of quadrature sets are used for S_N calculation in different regions, and angular neutron flux determined by these two quadrature sets between boundary are mapped. Partial neutron current conservation is considered at the boundaries. Verification of this new method is conducted by comparing with conventional S_N calculation at both lower and higher orders. The investigation about this method includes a comprehensive comparison of angular neutron flux and scalar neutron flux.