Accession Number:

AD0701745

Title:

INSTABILITY OF ROTATIONAL AND GRAVITATIONAL MODES OF OSCILLATION,

Descriptive Note:

Corporate Author:

COLORADO STATE UNIV FORT COLLINS DEPT OF ATMOSPHERIC SCIENCE

Personal Author(s):

• Simons,T. J.
• Rao,Desiraju B.

Report Date:

1970-01-01

Pagination or Media Count:

27.0

Abstract:

The problem of dynamic stability of small amplitude motions on a two-fluid system with a free surface is considered. For the case of no rotation the character of the Kelvin-Helmholtz instability is remarkably different as compared to systems where the external gravitational modes are absent either through the mechanism of filtering or by imposing a rigid top. In the case of a constant rotation, it is shown that the instabilities on a wave length - shear plane consist of regions where only the gravitational modes or only the rotational modes or both independently are unstable, in addition to regions where instabilities are generated by an interaction between the gravitational and rotational modes. Author

Descriptors:

• (*ATMOSPHERIC MOTION
• MATHEMATICAL MODELS)
• STABILITY
• OSCILLATION
• GRAVITY
• INTERACTIONS
• HYDRODYNAMICS

Subject Categories:

• Atmospheric Physics
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE