Unsteady incompressible two-dimensional and axisymmetric turbulent boundary layer flows
Abstract
The unsteady turbulent incompressible boundary-layer flow over two-dimensional and axisymmetric bodies with a pressure gradient has been studied. An eddy-viscosity model has been used to model the Reynolds shear stress. The unsteadiness is due to variations in the free stream velocity with time. The nonlinear partial differential equation with three independent variables governing the flow has been solved using Keller's Box method. The results indicate that the freestream velocity distribution exerts strong influence on the boundary-layer characteristics. The point of zero skin friction is found to move upstream as time increases.
- Publication:
-
Acta Mechanica
- Pub Date:
- June 1986
- Bibcode:
- 1986AcMec..59..251K
- Keywords:
-
- Axisymmetric Flow;
- Computational Fluid Dynamics;
- Flow Deflection;
- Incompressible Boundary Layer;
- Two Dimensional Boundary Layer;
- Unsteady Flow;
- Eddy Viscosity;
- Partial Differential Equations;
- Pressure Gradients;
- Reynolds Stress;
- Shear Stress;
- Skin Friction;
- Time Dependence;
- Velocity Distribution;
- Fluid Mechanics and Heat Transfer