Neutron transport model based on the transmission probability method

作者：Wang Kunpeng^*; Rineiski Andrei; Maschek Werner; Wu Hongchun; Cao Liangzhi

来源：Energy Conversion and Management, 2013, 72: 33-38.

DOI：10.1016/j.enconman.2013.02.020

• Neutron transport
• Integral transport equation
• Transmission Probability Method (TPM)
• Low density region

A new project has been started recently at KIT to develop a code able to treat hexagonal-z geometries with low density regions. The mathematical method chosen for that purpose is the Transmission Probability Method (TPM) for solving the integral neutron transport equation. In this model, one hexagonal prism is divided into six or more triangular prisms in order to get accurate flux distributions. Within each triangular prism, the neutron source is assumed to be isotropic, the scalar flux and source being approximated in space with a set of second order orthogonal polynomials. The neutron flux at the interfaces is constant in space and approximated with the simplified P-1 approximation in angle. A new code, TPM-HEXZ, based on the described model is developed and some benchmarks are used to verify the code, the results are in good agreement with reference ones.

• 出版日期2013-8
• 单位西安交通大学