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Effect on Richtmyer-Meshkov instability of deviation from sinusoidality of the corrugated interface between two fluids

Published online by Cambridge University Press:  30 August 2007

M.R. Gupta ,
S. Roy ,
S. Sarkar ,
M. Khan ,
H.C. Pant  and
M.K. Srivastava
M.R. Gupta
Affiliation:
Centre for Plasma Studies, Jadavpur University, Kolkata, India
S. Roy
Affiliation:
Centre for Plasma Studies, Jadavpur University, Kolkata, India
S. Sarkar
Affiliation:
Centre for Plasma Studies, Jadavpur University, Kolkata, India Department of Applied Mathematics, University of Caltutta, Kolkata, India
M. Khan
Affiliation:
Centre for Plasma Studies, Jadavpur University, Kolkata, India Department of Instrumentation Science, Jadavpur University, Kolkata, India
H.C. Pant
Affiliation:
Centre for Plasma Studies, Jadavpur University, Kolkata, India
M.K. Srivastava
Affiliation:
Theoretical Physics Division, BARC, Mumbai, India
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Abstract

The effect of arbitrary shapes of the two fluid interface on Richtmyer-Meshkov (RM) instability is investigated. It is seen that deviation from sinusoidality in the geometrical shapes has interesting influence on the overall growth rate. In the linear theoretic domain the RM instability may be actually reduced for suitable geometrical shape of the interface. The figures given demonstrate this aspect. This result is important in designing ICF target and also gives an idea to tailor laser pulse for optimum stability of RM modes.

Keywords

Corrugated interfaceGrowth rateNonsinusoidalityPerturbationRM instabilityRT instability
Type
Research Article
Information
Laser and Particle Beams , Volume 25 , Issue 3 , September 2007 , pp. 503 - 510
Copyright
© 2007 Cambridge University Press

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