Effects of Conditions of Deceleration Period on Heat Transfer Enhancement around Rectangular Obstruction by Pulsating Flow

Abstract

This study describes effects of deceleration period of pulsating flow on the level of the heat transfer enhancement around a rectangular heating element. Our recent study has reported that the application of the pulsating flow enhances heat transfer around heating elements mounted in thermal equipment such as high-density packaging electronic equipment. In this report, we investigated the heat transfer performance around the heating element mounted in two parallel plates while changing the time of the deceleration period of the pulsating flow through 2-Dimenstional Computational Fluid Dynamics analysis using OpenFOAM 4.1. It is found that the time of the deceleration period affects the whole heat transfer performance around the heating element.