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Type: Journal article
Title: Stability of an impulsively accelerated density interface in magnetohydrodynamics
Author: Wheatley, V.
Pullin, D.
Samtaney, R.
Citation: Physical Review Letters, 2005; 95(12):125002-1-125002-4
Publisher: American Physical Soc
Issue Date: 2005
ISSN: 0031-9007
Statement of
V. Wheatley, D. I. Pullin, and R. Samtaney
Abstract: In the framework of ideal incompressible magnetohydrodynamics, we examine the stability of an impulsively accelerated, sinusoidally perturbed density interface in the presence of a magnetic field that is parallel to the acceleration. This is accomplished by analytically solving the linearized initial value problem, which is a model for the Richtmyer-Meshkov instability. We find that the initial growth rate of the interface is unaffected by the presence of a magnetic field, but for a finite magnetic field the interface amplitude asymptotes to a constant value. Thus the instability of the interface is suppressed. The interface behavior from the analytical solution is compared to the results of both linearized and nonlinear compressible numerical simulations.
Rights: ©2005 American Physical Society
RMID: 0020081755
DOI: 10.1103/PhysRevLett.95.125002
Appears in Collections:Mechanical Engineering publications

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