Numerical Simulation Research of Velocity and Temperature Fields in Lead-bismuth Eutectic

On the basis of two-phase flow and the heat transfer theory, the velocity and temperature of the lead-bismuth was calculated with gas-injection or without gas-injection by FLUENT code, in the calculation segment. The radial velocity profiles and temperature profiles were acquired at different cross section. Analysis results show that: no matter the air is existence or not, the velocity distribution and the temperature distribution have a good symmetry. Temperature rise of the lead-bismuth liquid with gas injected is larger than without air. It is shown that the gas-injection is good for lead-bismuth liquid heat transfer at the calculation segment.