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We study the late time flow structure of Richtmyer-Meshkov instability.Recent numerical work has suggested a self-similar collapse of the developmentof this instability at late times, independent of the initial surface profile.Using the form of collapse suggested, we derive an analytic expression for themass-velocity relation in the spikes, and a global theory for the late timeflow structure. We compare these results with fluid dynamical simulation.

The late time structure of high density contrast, single mode Richtmyer-Meshkov flow