Numerical Simulation and Performance Test of Multi-heat Resource Water Cooling System

Abstract

It is hard to obtain the performance of the whole traction converter water-cooling system with different shape and route connecting tubes. In order to get the performance effectively and rapidly, the numerical simulation method is adopted to do that. The flow rate to every water-cooling heat sink is acquired through simulation analysis. Based on the flow rate, the temperature distribution of water-cooling heat sink has been investigated, and also the temperature variation of water-cooling system. The results show that the temperature difference between water-cooling heat sink is less than 1°C under the same inlet flow rate.With the purpose of verifying the accuracy and correctness of the numerical simulation method, the performance test also has been done.The difference of performance result between numerical simulation and test is below 6%, which demonstrates the accuracy and feasibility of numerical simulation method. Comparing with test, the numerical simulation method can greatly improve the design efficiency and save human and financial resources.