Combined effect of viscosity and vorticity on single mode Rayleigh-Taylor instability bubble growth
Abstract
The combined effect of viscosity and vorticity on the growth rate of the bubble associated with single mode Rayleigh-Taylor instability is investigated. It is shown that the effect of viscosity on the motion of the lighter fluid associated with vorticity accumulated inside the bubble due to mass ablation may be such as to reduce the net viscous drag on the bubble exerted by the upper heavier fluid as the former rises through it.
- Publication:
-
Physics of Plasmas
- Pub Date:
- February 2011
- DOI:
- arXiv:
- arXiv:1101.3853
- Bibcode:
- 2011PhPl...18b2109B
- Keywords:
-
- bubbles;
- drag;
- Rayleigh-Taylor instability;
- viscosity;
- vortices;
- 47.20.Ma;
- 47.55.D-;
- 47.32.-y;
- 51.20.+d;
- 66.20.Cy;
- Interfacial instabilities;
- Drops and bubbles;
- Vortex dynamics;
- rotating fluids;
- Viscosity diffusion and thermal conductivity;
- Theory and modeling of viscosity and rheological properties including computer simulation;
- Physics - Plasma Physics
- E-Print:
- doi:10.1063/1.3555523