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Rayleigh-Taylor instability in dusty plasma experiment

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4928444· OSTI ID:22490103
 [1];  [2]
  1. Department of Physics and Astrophysics, University of Delhi, Delhi 110007 (India)
  2. Institute for Plasma Research, Bhat, Gandhinagar 382424 (India)
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.
OSTI ID:
22490103
Journal Information:
Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 22; ISSN PHPAEN; ISSN 1070-664X
Country of Publication:
United States
Language:
English

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