Numerical simulation of temperature and flow fields under steady state condition in core for TP-1 sodium cooled TWR based on porous media model

According to the specific structural and operational characteristics of the TP-1 sodium cooled traveling wave reactor (TWR), which was proposed by TerraPower Company, thermal-hydraulic characteristics of the reactor core of TP-1 were investigated by the commercial software CFX with porous media model. The calculation results show that the numerical simulation for TWR reactor core is intuitional, rapid and effective by using porous media model. There is a certain significance in analyzing three-dimensional temperature and flow field of TWR reactor core under steady state condition.