On the non-linear evolution of critical layers
Abstract
Examples of the non-linear evolution of a critical layer in an inviscid shear flow are examined. Both free and forced perturbations to the basic flow are considered. If the oscillation is free the flow is required to be marginally unstable. The physical situation is of a fluid either in quasi-geostrophic motion or having a variable density described by the Oberbeck-Boussinesq approximation.
- Publication:
-
Laminar-Turbulent Transition
- Pub Date:
- 1980
- Bibcode:
- 1980ltt..proc..163B
- Keywords:
-
- Inviscid Flow;
- Shear Flow;
- Stratified Flow;
- Boussinesq Approximation;
- Free Vibration;
- Geostrophic Wind;
- Oscillating Flow;
- Reflected Waves;
- Rossby Regimes;
- Fluid Mechanics and Heat Transfer