Comparison of multiequation turbulence models for several shockseparated boundarylayer interaction flows
Abstract
Several multiequation eddy viscosity models of turbulence are used with the NavierStokes equations to compute three classes of experimentally documented shockseparated turbulent boundarylayer flows. The types of flow studied are: (1) a normal shock at transonic speeds in both a circular duct and a twodimensional channel; (2) an incident oblique shock at supersonic speeds on a flat surface; and (3) a twodimensional compression corner at supersonic speeds. Established zeroequation (algebraic), oneequation (kinetic energy), and twoequation (kinetic energy plus length scale) turbulence models are each utilized to describe the Reynolds shear stress for the three classes of flows. These models are assessed by comparing the calculated values of skin friction, wall pressure distribution, velocity, Mach number, and turbulent kinetic energy profiles with experimental measurements. Of the models tested the twoequation model results gave the best overall agreement with the data.
 Publication:

11th Fluid and Plasma Dynamics Conference
 Pub Date:
 July 1978
 Bibcode:
 1978fpdy.conf.....V
 Keywords:

 Boundary Layer Equations;
 Boundary Layer Separation;
 Eddy Viscosity;
 NavierStokes Equation;
 Shock Wave Interaction;
 Turbulence Models;
 Turbulent Boundary Layer;
 Axisymmetric Flow;
 Channel Flow;
 Corner Flow;
 Ducted Flow;
 Flat Surfaces;
 Kinetic Energy;
 Mach Number;
 Normal Shock Waves;
 Oblique Shock Waves;
 Pressure Distribution;
 Reynolds Number;
 Reynolds Stress;
 Skin Friction;
 Supersonic Flow;
 Transonic Flow;
 Velocity Distribution;
 Fluid Mechanics and Heat Transfer