Hydromagnetic Rayleigh--Taylor instability of a rotating stratified fluid

Journal Article · Sat May 01 04:00:00 EDT 1982 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.863828· OSTI ID:5525328

Chakraborty, B B

The Raleigh--Taylor instability of an infinitely conducting, rotating, stratified fluid in the presence of a horizontal magnetic field is studied. The fluid density and the magnetic field strength are arbitrary functions of the vertical coordinate. An estimate of the upper bound for the growth rate of the instability of any unstable mode of disturbances of a given wavelength, which cannot occur unless the fluid density increases with height at some points, is obtained. This estimate is found to give a satisfactory result in a Rayleigh--Taylor instability model for which the dispersion relation is known exactly. A sufficient condition for stability of a disturbance is also obtained.

• Research Organization: Mathematics Section, Department of Chemical Technology, Bombay University, Matunga, Bombay-400019, India
• OSTI ID: 5525328
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 25:5; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

640430* -- Fluid Physics-- Magnetohydrodynamics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DISPERSION RELATIONS
DISTURBANCES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FLUID FLOW
FLUID MECHANICS
HYDRODYNAMICS
INCOMPRESSIBLE FLOW
INSTABILITY
INSTABILITY GROWTH RATES
MAGNETIC FIELDS
MAGNETOHYDRODYNAMICS
MECHANICS
MOTION
PHYSICAL PROPERTIES
RAYLEIGH-TAYLOR INSTABILITY
ROTATION
STRATIFICATION