Optimal design of a vehicular charged-air cooler based on numerical simulation of thermal-hydraulic performances

摘要

A charged air cooler (CAC) with good thermal-hydraulic performances is the guarantee for vehicular turbo charged air system.Mullti-porus media model is adopted in this study to investigate the thermal-hydraulic performance of a CAC and the effect of its structure on the performance.The detailed fin structure can be simplified and thus computational workload can be reduced greatly by this way,and the overall thermal-hydraulic performance investigation of a CAC is possible.The study results show that the inlet and outlet locations of hot-channel have a significant effect on thermal-hydraulic performance and through changing the locations,heat transfer can be enhanced and flow resistance can be reduced.