Research on Neutron Diffusion and Thermal Hydraulics Coupling Calculation based on FLUENT and its Application Analysis on Fast Reactors

摘要

In this study, based on the UDF and UDS function of the FLUENT, the neutron diffusion equation is defined. There is no requirement to develop the interface program of the coupling calculation. Then the assembly is fine modeled and the solver in the FLUENT is used to solve the neutron diffusion equation. The thermal-hydraulics calculation is carried out at the same time. Therefore the coupling calculation between neutron diffusion and thermal-hydraulics is achieved on the same solver of the FLUENT. In order to achieve the convenient data transfer, the neutron diffusion and thermal-hydraulics calculation use the same meshes.