Unsteady nonsimilar compressible laminar two-dimensional and axisymmetric boundary-layer flows
Abstract
Unsteady nonsimilar laminar compressible two-dimensional and axisymmetric boundary-layer flows have been studied when external velocity varies arbitrarily with time and the flow is nonhomentropic. The governing nonlinear partial differential equations with three independent variables have been solved using an implicit finite difference scheme with quasi-linearization technique from the origin to the point of zero skin-friction. The results have been obtained for (i) an accelerating stream and (ii) a fluctuating stream. The skin friction responds to the fluctuations in the free stream more compared to the heat transfer. It is observed that Mach number and hot wall cause the point of zero skin friction to occur earlier whereas cold wall delays it.
- Publication:
-
Acta Mechanica
- Pub Date:
- December 1985
- Bibcode:
- 1985AcMec..57..215V
- Keywords:
-
- Axisymmetric Flow;
- Boundary Layer Stability;
- Compressible Boundary Layer;
- Computational Fluid Dynamics;
- Laminar Boundary Layer;
- Two Dimensional Boundary Layer;
- Cylindrical Bodies;
- Finite Difference Theory;
- Flow Velocity;
- Heat Transfer;
- Mach Number;
- Oscillating Flow;
- Skin Friction;
- Wall Temperature;
- Fluid Mechanics and Heat Transfer