The dynamics of a viscous differentially rotating gravitating medium
Abstract
The dynamics of a rotating gaseous viscous gravitating medium are discussed relative to two-dimensional low-amplitude perturbations shorter than the system's thickness. In the local rotating reference frame, an exact solution is obtained in the form of the product between the fractional-rational and transcendental time functions. The results are applied to real objects, showing that the turbulent velocity of gaseous clouds in the solar neighborhood is about 6 km/s.
- Publication:
-
Pisma v Astronomicheskii Zhurnal
- Pub Date:
- December 1989
- Bibcode:
- 1989PAZh...15.1122F
- Keywords:
-
- Flow Stability;
- Gas Dynamics;
- Gravitational Effects;
- Rotating Fluids;
- Viscous Fluids;
- Accretion Disks;
- Astrophysics;
- Differential Equations;
- Roots Of Equations;
- Astrophysics