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Title: Rayleigh-Taylor instability in dusty plasma experiment

The stability of a stratified dust cloud levitated in an anodic plasma is studied in the weakly and strongly coupled dust regimes. It is shown that the cloud is predominantly unstable to a Rayleigh-Taylor (RT) instability driven by a component of the ambient gravity in a direction opposite to the direction of dust density stratification in the cloud. The elasticity of the strongly coupled dust is shown to set a threshold for the RT instability, which is consistent with experimental observations.
Authors:
 [1] ;  [2]
  1. Department of Physics and Astrophysics, University of Delhi, Delhi 110007 (India)
  2. Institute for Plasma Research, Bhat, Gandhinagar 382424 (India)
Publication Date:
OSTI Identifier:
22490103
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 8; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; DUSTS; GRAVITATION; PLASMA; RAYLEIGH-TAYLOR INSTABILITY; STABILITY; STRATIFICATION; STRONG-COUPLING MODEL; WEAK-COUPLING MODEL