C214 Effects of Delta Wings on Heat Transfer Enhancement in a Fin-and-Tube Type Heat Exchanger

Abstract

This study experimentally investigated flow structure and heat transfer caused by a pair of delta-wing vortex generator in front of tubes. The effects of the attack angle and the distance between the delta-wing and tube on the heat transfer performance for two different configurations of the delta wings were investigated for laminar Reynolds number range. It was found that the heat transfer was enhanced by increasing the attack angle for the inflow configuration of delta-wing pair in front of the tube.