Non-one-dimensional and self-similar properties of explosive processes in stratified shear flows
Abstract
Explosive interactions of zero-energy waves in stratified shear flows are analyzed in the context of three-dimensional geometry (two-dimensional interaction in a horizontal plane of waves with a mode structure along the vertical coordinate). It is shown that explosive interaction of zero-energy waves in stratified shear flows occurs every time the flow stabilty parameter exceeds a certain threshold level. With the exception of degenerate case, such an interaction is shown to lead to an explosive rise of three-dimensional perturbations during the subharmonic decomposition of the initially two-dimensional zero-energy wave.
- Publication:
-
Akademiia Nauk SSSR Doklady
- Pub Date:
- 1985
- Bibcode:
- 1985DoSSR.285...65G
- Keywords:
-
- Computational Fluid Dynamics;
- Explosions;
- Shear Flow;
- Stratified Flow;
- Three Dimensional Flow;
- Kelvin-Helmholtz Instability;
- Propagation Modes;
- Two Dimensional Flow;
- Wave Propagation;
- Fluid Mechanics and Heat Transfer