Measurements in a wall jet over a convex surface

A plane wall jet over a convex surface with constant radius is studied experimentally. Classical and intermittent properties of the flow are analyzed. The distribution of the Reynolds shear stress is examined and the contributions of the two centers of turbulent production are emphasized, especially in the region where the mean velocity is a maximum. All the terms included in the turbulent kinetic energy budget and in the Reynolds stress equation are measured or evaluated. Two interfaces are considered: the first one located in the edge region of the jet, the second one in the inner part located in the vicinity of the ordinate where the velocity is a maximum. Also, two intermittency factors are determined. Accordingly, conditional mean velocities can be measured. Results indicate that the wall region seems strongly dependent on the jet region.