Journal
PHYSICS OF FLUIDS
Volume 12, Issue 8, Pages 2148-2151Publisher
AMER INST PHYSICS
DOI: 10.1063/1.870462
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In this Brief Communication, we use results from two-dimensional simulations to calculate for what product of perturbation wave number (k) and initial amplitude (a(0)) the Richtmyer impulsive model will fail in its prediction of shock wave driven instability growth as a function of initial shock Mach number. For large ka(0), we suggest a formula which bounds the maximum value of the ratio of the amplitude growth rate over the interface speed by one minus the ratio of the interface speed and the transmitted shock speed. (C) 2000 American Institute of Physics. [S1070-6631(00)00208-7].
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