FLOWFIELD PREDICTION OF SEPARATING TURBULENT SHEAR LAYERS

HIS paper is concerned with the prediction of turbulent shear layers for the case of a steady freestream, Incompressible, two-dimensional mean flow over a streamlined or gently curved body or surface with a developed turbulent boundary layer upstream of the separation zone. The separation of the boundary layer is due to an adverse pressure gradient. Experimental observations indicate that when separation occurs near the trailing edge, there is strong interaction between the wakes of the suction and pressure sides, since the thickness and velocity scales are not greatly different. When it occurs well upstream of the trailing edge, the velocity and pressure just outside the seperated shear layer approach the free-streamline condition of constant pressure and velocity in this fully stalled flow. Here we discuss the prediction of the turbulent shear flow downstream of the separation zone for this latter case. © 1978 American Institute of Aeronautics and Astronautics, Inc., All rights reserved.