Analysis of the fluid flow characteristics in subchannels of VVER-1000 reactor’s fuel assemblies by CFD method

Computational Fluid Dynamics (CFD) is a widely used method around the world for complex flow and heat industrial problems. In this paper, the fluid flow parameters were investigated in subchannels of VVER-1000 reactor’s fuel assemblies by ANSYS CFX program. Different mesh resolutions and turbulence models were tested to deal with the water flow problems such as velocity distribution and pressure change as well as the hydraulic resistances of the spacer grids. The obtained results are good agreement with the measured values and the published reports from other authors.

Dinh Van Thin , Phan Le Hoang Sang  és  Luong Van Tho cikke a Nukleon legújabb számában.