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Title: Temporal evolution of surface ripples on a finite plasma slab subject to the magneto-Rayleigh-Taylor instability

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.4904210· OSTI ID:22407917
; ; ; ;  [1]; ;  [2]
  1. Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan 48109-2104 (United States)
  2. Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

Using the ideal magnetohydrodynamic model, we calculate the temporal evolution of initial ripples on the boundaries of a planar plasma slab that is subjected to the magneto-Rayleigh-Taylor instability. The plasma slab consists of three regions. We assume that in each region the plasma density is constant with an arbitrary value and the magnetic field is also constant with an arbitrary magnitude and an arbitrary direction parallel to the interfaces. Thus, the instability may be driven by a combination of magnetic pressure and kinetic pressure. The general dispersion relation is derived, together with the feedthrough factor between the two interfaces. The temporal evolution is constructed from the superposition of the eigenmodes. Previously established results are recovered in the various limits. Numerical examples are given on the temporal evolution of ripples on the interfaces of the finite plasma slab.

OSTI ID:
22407917
Journal Information:
Physics of Plasmas, Vol. 21, Issue 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
Country of Publication:
United States
Language:
English

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Cited By (6)

Coupling of sausage, kink, and magneto-Rayleigh-Taylor instabilities in a cylindrical liner journal March 2015
Discrete helical modes in imploding and exploding cylindrical, magnetized liners journal December 2016
Evolution of sausage and helical modes in magnetized thin-foil cylindrical liners driven by a Z-pinch journal May 2018
Study of stability in a liner-on-target gas puff Z-pinch as a function of pre-embedded axial magnetic field journal January 2020
Magneto-Rayleigh–Taylor instability in compressible Z-pinch liner plasmas journal June 2017
Rayleigh-Taylor instability in accelerated elastic-solid slabs journal December 2017

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