Temperature wake in an adverse pressure gradient

Abstract

A study is made of the flow pattern resulting from the presence of a temperature wake in a uniform velocity field subjected to various adverse pressure gradients. Dimensionless temperature profiles and velocity profiles are presented. A velocity defect appears in the region of high temperature, and the magnitude of the adverse pressure gradient over the range investigated has no effect on the spreading of the temperature wake. A simple theoretical approach is presented which correlates well with the experimental results. The implications of the experimental results and the theoretical approach are discussed with reference to an axial compressor with a temperature wake in the fluid stream at the inlet.