Simulation of the Temperature of a Shielding Induction Motor of the Nuclear Main Pump under Different Turbulence Models

Thermal design and the choice of turbulence models are crucial for motors. In this project, geometrical model vertical shielding induction motor a small nuclear main pump was established by SolidWorks software finite volume method adopted to investigate temperature motor, especially temperatures bearings lubricated water. To make numerical simulation flow heat transfer in rotating clearance more accurate, effects four types different two equation on field were studied. The results showed that choices had little effect winding insulation but influenced lower guide bearing lubricating water secondary cooling outlet. SST k-ω lowest relative error result primary loop system motor. water, spiral tube groove increased approximately linearly along axial direction.