Convective instability in a rotating gas
Abstract
Consideration is given to the development of convective instability in a gas situated in a gravity field. A numerical solution is obtained to the nonlinear two-dimensional boundary value problem for the instability in the case of an initial velocity perturbation. It is shown that the convective instability leads to a large increase of the angular velocity of the gas near the axis of rotation. It may be possible to use this instability mechanism to explain the development of tornadoes.
- Publication:
-
Pisma v Zhurnal Tekhnischeskoi Fiziki
- Pub Date:
- April 1978
- Bibcode:
- 1978PZhTF...4..436Z
- Keywords:
-
- Atmospheric Models;
- Convective Flow;
- Gravitational Fields;
- Rotating Fluids;
- Angular Velocity;
- Boundary Value Problems;
- Density Distribution;
- Entropy;
- Equations Of Motion;
- Ideal Gas;
- Kinetic Energy;
- Magnetohydrodynamic Stability;
- Pressure Distribution;
- Rotary Stability;
- Tornadoes;
- Fluid Mechanics and Heat Transfer