Nonlinear stabilization of the Rayleigh--Taylor instability by external velocity shear

Journal Article · Sun Mar 01 04:00:00 EST 1992 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860245· OSTI ID:5070256

Hassam, A B ^[1]

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1. Laboratory for Plasma Research, University of Maryland, College Park, Maryland 20742-3511 (United States)

It is shown that the Rayleigh--Taylor instability of magnetized plasma is nonlinearly stabilized by the external imposition of transverse velocity shear with zero spatial second derivative. The critical velocity shear required for stabilization is of order {gamma}{sub {ital g}}(ln Ra){sup 1/2}, where {gamma}{sub {ital g}} is the linear growth rate and Ra is the Rayleigh number.

• OSTI ID: 5070256
• Journal Information: Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 4:3; ISSN 0899-8221; ISSN PFBPE
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700340* -- Plasma Waves
Oscillations
& Instabilities-- (1992-)
BALLOONING INSTABILITY
CLOSED PLASMA DEVICES
CONFINEMENT
CONVECTIVE INSTABILITIES
DISPERSION RELATIONS
DRIFT INSTABILITY
EIGENVALUES
FLUID FLOW
GRAVITATIONAL FIELDS
INSTABILITY
INSTABILITY GROWTH RATES
MECHANICAL PROPERTIES
PLASMA CONFINEMENT
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PLASMA MICROINSTABILITIES
RAYLEIGH-TAYLOR INSTABILITY
SHEAR PROPERTIES
STABILIZATION
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TURBULENT FLOW