SPHERICAL HARMONICS METHOD FOR THE NEUTRON TRANSPORT EQUATION BASED ON UNSTRUCTURED-MESHES
The spherical harmonics (Pjv) method is applied to a newly raised self-adjoint an-gular flux (SAAF) neutron transport equation and a set of Pjv moments equations coupled with each other are obtained. An iterative method is utilized to decou-ple them and solve them one by one. Using the finite element method (FEM), the spatial variables are discretized on unstructured-meshes. Based on the model, a multigroup neutron transport equation calculation code is programmed. No limitation is imposed on the order of flux and scattering cross section angular ex-pansion. The numerical results of several benchmark problems demonstrate that this method can provide high precision result and avoid the ray effect, which appears in the discrete ordinate (Sat) method, very well.
CAO LIANGZHI WU HONGCHUN YUXIJUN
Schools of Energy and Power engineering, Xian Jiaotong University,Xian Shaanxi, 710049, P.R. China Institute of Applied Physics and Computational Mathematics, Beijing, 100088, P.R. China
国际会议
The Joint Conference of ICCP6 and CCP2003(第6届国际计算伦理会议)
北京
英文
311-315
2004-05-23（万方平台首次上网日期，不代表论文的发表时间）