203 Heat Transfer Characteristics in Turbulent Channel Flow Obstructed by a Turbulence Promoter

Abstract

Experiments have been performed for a turbulent channel flow obstructed by a turbulence promoter. Flat body was used for the turbulence promoter. The length of the body, the thickness of the body and the distance between the wall and the body were changed in several steps. The total performance between the heat transfer and the pressure drop was estimated under conditions of an equal pumping power. When the comparatively thin body was installed near the heating surface, the good performance was obtained.