Two-Dimensional Impinging Jet on Concave Surface

Abstract

Mean and fluctuating velocities have been measured for a two-dimensional gas jet impinging on a solid concave surface. Measurements are made by the technique of rotating a probe with an inclined hot wire under the Reynolds number of 16500. The figures are shown for distributions of the mean velocity, the turbulence energy and the Reynolds stress. And the influence of the curvature of the wall is found evidently in these jet characteristics. Also, the static pressure in the jet and on the surface is calculated by using the measured results of velocities, and the validity of the calculating method is confirmed by comparison with the experimental results.