Effect of convex curvature on the mean flow characteristics of a three-dimensional wall jet

TLDR: In this article, the authors present the results of effect of conformal curvature on the mean flow characteristics of wall jets, including mean velocity profiles, maximum velocity decay and the growth of half width.

Abstract: Several studies of jets impinging on a plane surface have already been made. This paper presents the results of effect of convex curvature on the mean flow characteristics of wall jets. Measurements were performed up to an axial distance of 60 times the slot widths of the orifice selected in the present work. The flow properties considered in the present paper are the mean velocity profiles, maximum velocity decay and the growth of half width. Comparisons have been made with the two-dimensional wall jet. It is observed that the longitudinal mean velocity profiles exhibit similarity for the convex wall jet when compare to plane wall jet. All the mean velocity profiles are self-similar at all the longitudinal distances measured in the present study. It is shown that the decay of the maximum velocity is higher for a three-dimensional wall jet on convex surface compare to plane wall jet. It is also found that the growth of half width is higher on curved surface when compared to plane wall jet.