Computational study of three dimensional wall jet on concave surface

Abstract

Numerical and experimental study has been carried out for a three-dimensional wall jet developing on a concave curved surface. A square orifice is used to generate the free jet. The flow characteristics such as mean velocity profiles, decay of maximum velocity, half width growth and variation of curvature parameter are presented in this paper. For comparison purposes, measurements are also taken on plane surface. The mean velocity profiles show similarity for both the surfaces and no effect of curvature is felt. It is observed that maximum velocity decay is slower on concave surface when compared to the decay rate over plane surface. The half width growth is decreased over concave surface.