Possibility Investigation of Heat Transfer Enhancement in Rectangular Mini-Channels by Pulsatile Flow

Abstract

This study describes a possibility of heat transfer enhancement in mm-scale water-cooled channels using pulsating flow. The effect of heat transfer enhancement around cylindrical or square prism obstructions by using pulsating airflow have been clarified. Our study is trying to apply pulsating flow to heat transfer enhancement method in water-cooled device. In this report, we especially investigated the effects of the combination of the rib and the pulsating water flow on the heat transfer performance in the square mini channel through CFD analysis. It is found that the heat transfer performance in the water cooling channel can be enhanced by using the combination of the rib and the flow pulsation.