Turbulent Structure in Flat Plate Boundary Layer Subjected to Favourable Pressure Gradient

Abstract

Detailed experiments have been made for effect of the favorable pressure gradients on the law of the wall in a turbulent boundary layer. The local wall shear stress was measured with a direct measurement device. Mean and turbulent velocity profiles were measured with a hot wire anemometer. The effect of the gap between a surrounding plate and floating element will be reduced by using an appropriate floating element size. The mean velocity profile under the favorable pressure gradient is likely to be consistent with a modified log-law.