KAN Yin-hui 1 , YE Zhi-feng 1 , ZHOU Li 2 , ZHOU Tan-zhou 2.Numerical Simulation of Oil Immersion Cooling Performance of Electric Fuel Pump Driving Motor[J].航空发动机,2024,50(2):108-113
Numerical Simulation of Oil Immersion Cooling Performance of Electric Fuel Pump Driving Motor
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Key Words:electric fuel pump  driving motor  oil immersion cooling  flow field  temperature field  numerical simulation  more electric engine
Author NameAffiliation
KAN Yin-hui 1 , YE Zhi-feng 1 , ZHOU Li 2 , ZHOU Tan-zhou 2 1. College of Energy and Power Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 China 2. AECC Guizhou Honglin Aviation Power Control Technology Co. Ltd Guizhou 550009 China 
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Abstract:In order to study the oil immersion cooling performance of an electric fuel pump driving motor, based on the three- dimensional model of cooling fluid and various motor components, and by fully considering the influence of physical quantities such as heat? ing power and material properties of each component, the finite volume method was used to simulate the fluid-thermal coupling field of the electric fuel pump motor, and the influences of different boundary conditions on the motor flow field and temperature field were analyzed. The results show that the pressure loss of the flow channel and the maximum temperature of the motor can meet the operational require? ments of the electric fuel pump under the maximum cooling fuel flow rate and the motor's maximum power. With the increase of cooling flow rate or fuel viscosity, the pressure loss of the flow channel increases, and at the maximum cooling flow, the pressure loss increases by about 2 kPa for every 1 mm 2 /s increase in fuel viscosity. The motor power and inlet temperature have a great influence on the temperature of each motor components, and the temperature rises of motor components are approximately in linear relations with the fuel inlet temperature, while the ambient temperature has little influence on the temperature field of the motor. The research results provide a theoretical basis for the design and optimization of the oil immersion cooling flow channel of electric fuel pump motors.
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