Research on Flow Uniformity of Automotive Charge Air Cooler Based on CFD Numerical Simulation
In order to solve the problem of poor flow uniformity in the internal flow passage of automobile charge air cooler(CAC),an optimal structure of adding guide plate in the air chamber of CAC was pro-posed.Based on the CFD numerical simulation,the gas mass flow distribution,velocity field and pressure field in the CAC were analyzed,and the validity of the simulation model was verified by the wind tunnel test.On this basis,the influence of flow guide plate on the internal flow uniformity of CAC was compared.The results show that the deviation of the average mass flow rate of each heat pipe in the CAC decreases from 7.66％to 3.20％,the allowable ambient temperature of the CAC increases by 0.84℃ and the pres-sure loss of the air chamber decreases by 37.4％.It can effectively improve the flow uniformity of CAC,improve the heat dissipation performance,reduce the core thermal stress concentration,and reduce the risk of reliability failure.It provides valuable engineering practice for study of CAC flow uniformity.
Charge air coolerFlow uniformityAir chamber guide plateHeat performance
万方数据
维普
