An analytical nonlinear theory of Richtmyer-Meshkov instability

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)149-155
Journal / PublicationPhysics Letters, Section A: General, Atomic and Solid State Physics
Issue number3
Publication statusPublished - 18 Mar 1996
Externally publishedYes


Richtmyer-Meshkov instability is a fingering instability which occurs at a material interface accelerated by a shock wave. We present an analytic, explicit prediction for the growth rate of the unstable interface. The theoretical prediction agrees, for the first time, with the experimental data on air-SF6, and is in remarkable agreement with the results of recent full nonlinear numerical simulations from early to late times. Previous theoretical predictions of the growth rate for air-SF6 unstable interfaces were about two times larger than the experimental data.