Abstract
A numerical simulation of the time-dependent, Reynolds-averaged, Navier-Stokes equations for the entire flowfield, employing a two-equation eddy viscosity turbulence model, is presented for free turbulent shear layer reattachment on inclined surfaces at high Mach number. The results are compared to the results of an investigation of a two-dimensional, free turbulent shear layer reattaching on an inclined surface at Mach 2.92 and at a high Reynolds number. The test geometry is specifically designed to isolate the reattachment process of a high-speed separated flow. Detailed comparisons of prediction and experiment are made in the free shear layer, at reattachment, and in the developing boundary layer downstream. These comparisons include mean surface quantities as well as mean and fluctuating flowfield quantities. Although the overall features of this complex flowfield are predicted, there are several deficiencies in the numerical solution, particularly in the region downstream of reattachment. Modifications of the turbulence model to correct these difficiencies are discussed.
Published Version
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