Turbulent solutions of the compressible Navier-Stokes equations using a composite velocity procedure
Abstract
A relaxation procedure using a composite-velocity formulation and an eddy-viscosity model to simulate turbulent flows over an axisymmetric afterbody is presented. A multiplicative composite for the inviscid and viscous velocities is prescribed in the compressible Navier-Stokes equations. The eddy viscosity model is used to simulate turbulence at high Reynolds numbers. The governing equations are written in orthogonal curvilinear coordinates. Body-fitted coordinates are prescribed using an extension of the Schwarz-Christoffel transformation. The finite difference form of the equations are solved using a strongly implicit procedure which allows for arbitrarily large time steps.
- Publication:
-
AIAA, Aerospace Sciences Meeting
- Pub Date:
- January 1983
- Bibcode:
- 1983aiaa.meet...11C
- Keywords:
-
- Compressible Flow;
- Computational Fluid Dynamics;
- Eddy Viscosity;
- Navier-Stokes Equation;
- Relaxation Method (Mathematics);
- Turbulent Flow;
- Finite Difference Theory;
- Flow Velocity;
- Numerical Stability;
- Schwarz-Christoffel Transformation;
- Turbulent Boundary Layer;
- Viscous Flow;
- Fluid Mechanics and Heat Transfer