Shear stabilization of the Rayleigh-Taylor modes
Abstract
The effect of flow shear on the stability of rotating ideal magnetohydrodynamic equilibria is investigated. It is found that a large enough shear can sometimes completely stabilize the flute(k=0) modes. The most notable result is a theorem which provides for an analytical determination of the exact number of unstable modes. A weaker sufficient condition for stability is also derived.
- Publication:
-
Physics of Fluids
- Pub Date:
- January 1979
- DOI:
- 10.1063/1.862438
- Bibcode:
- 1979PhFl...22...89H
- Keywords:
-
- Magnetohydrodynamic Stability;
- Plasma Oscillations;
- Rotating Plasmas;
- Shear Flow;
- Taylor Instability;
- Flow Stability;
- Mathematical Models;
- Singularity (Mathematics);
- Small Perturbation Flow;
- Tokamak Devices;
- Plasma Physics