Flow structure investigation heat transfer enhancement on inner tubular pipe with winglet vortex generator

Abstract

Vortices phenomenon becomes one of solutions to enhance heat transfer performance in shell-and-tube type of heat exchanger. Vortex generator is a device that can generate moving vortices of fluid to get good mixing fluid in heat transfer. The aim of this study is to find the effect of rectangular and delta winglet vortex generator if they are applied in inner tubular pipe heat exchanger, especially for shell-and-tube heat exchanger. Two types of winglet vortex generator were mounted in inner circular pipe then examined in turbulent flow with 6000-10000 Reynold numbers. The result of simulation showed that the use of rectangular and delta winglet can improve heat transfer performance.