THE STEADY HORIZONTAL FLOW OF A WALL-JET INTO A LARGE-WIDTH CAVITY

This paper treats the steady flow of a wall jet into a large-width cav ity for which the primary axis is normal to the direction of the jet i nflow. Numerical solutions of the two-dimensional Navier-Stokes equati ons are computed for inlet Reynolds numbers of 10 to 50 and tank width to inlet height ratios of 16 to 128. The length and velocity scales o f the wall jet boundary layer exhibit close agreement with the classic wall jet similarity solution and published experimental data but the width of the region for which the comparison proves to be favorable ha s a limited extent. This departure from a self-similar evolution of th e wall jet is shown to result from the finite domain width and its inf luence on the large recirculation cell located immediately above the w all jet boundary layer.