Hydraulic Performance Analysis of Nuclear Axial Pump Based on CFD Method

In this paper, a nuclear axial pump is simulated based on CFD method for its hydraulic performance. The k-ε Reynolds turbulent model is used to simulate the three-dimensional fluid field in this pump. The applied power is calculated based on the torque, and actual power based on the head and flowrate. The analysis results show good agreements with the test values. The maximum deviation for head, shaft power and efficiency is about 6.3%, 4.9% and 2.2%, respectively, and the minimum deviation is about 3.4%, 1.4% and 1.0%, respectively. Based on the analysis results, the methods used in this paper can be applied to design and optimize the nuclear pumps.