Dynamic stabilization of Rayleigh-Taylor instability in ablation fronts
1 E.T.S.I. Industriales, Universidad de Castilla-La Mancha and Instituto de Investigaciones Energéticas, 13071 Ciudad Real, Spain
2 GSI Helmholtzzentrum für Schwerionenforschung Darmstadt, Planckstrasse 1, 64291 Darmstadt, Germany
a e-mail: firstname.lastname@example.org
b Permanent address: INFN Bologna and Physics Department, University of Bologna, Italy
Published online: 15 November 2013
Dynamic stabilization of Rayleigh-Taylor instability in an ablation front is studied by considering the simplest possible modulations in the acceleration. Explicit analytical expressions for the instability growth rate and for the boundaries of the stability region are obtained by considering a sequence of Dirac deltas. Besides, general square waves allow for studying the effect of the driving asymmetries on the stability region as well as the optimization process. The essential role of compressibility is phenomenologically addressed in order to find the constraints it imposes on the stability region.
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