Numerical Analysis of Eddy Viscosity Models in Supersonic Turbulent Boundary Layers
Three multilayer eddy viscosity models by Herring-Mellor, Cebeci-Smith-Mosinskis, and Maise-McDonald are compared in this investigation. The aforementioned models were incorporated into an implicit finite difference numerical scheme for compressible turbulent boundary layers. Calculations were performed over Mach number ranges of approximately 0 to 4.55 with the Reynolds number spanning the range of 4 x 106 to 1.41 x 109 for zero pressure gradient and adiabatic wall. All selected viscosity models produced comparable results and provided excellent agreement with the experimental measurements. The calculated results revealed the dominant nature of the viscous sublayer while modifications in the law of the wake region exhibited a relatively mild influence on the numerical solutions.