インタクーラ用インナフィンの数値解析

抄録

The purpose of this study is to improve the performance of inner-fins for intercoolers use for automotive turbocharger engines. Since these intercoolers are used at high flow velocities, unlike other automotive heat exchangers, analytical treatment needs to be unsteady manner. In this paper, a numerical analysis was made, considering flow instability, to know determine the fluctuation in the flow of fin wake effects the efficiency of heat transfer of each rear fin. It was ascertained that the heat transfer enhancement of the fin is related to each fin space and Reynolds number, and high heat transfer is obtained when the fin space is greater than three times the fin thickness.