Experimental Study for ICF-Related Richtmyer-Meshkov Instabilities

B. J. Motl; J. H. J. Niederhaus; D. Ranjan; J. G. Oakley; M. H. Anderson; R. Bonazza

doi:dx.doi.org/10.13182/FST07-A1640

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Home / Publications / Journals / Fusion Science and Technology / Volume 52 / Number 4

Experimental Study for ICF-Related Richtmyer-Meshkov Instabilities

B. J. Motl, J. H. J. Niederhaus, D. Ranjan, J. G. Oakley, M. H. Anderson, R. Bonazza

Fusion Science and Technology / Volume 52 / Number 4 / November 2007 / Pages 1079-1083

Technical Paper / Plasma Engineering and Diagnostics / dx.doi.org/10.13182/FST07-A1640

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Richtmyer-Meshkov experiments for a membrane-less, sinusoidal gas interface are carried out in a vertical shock tube for a pre-shock Atwood number (A = (₂ - ₁)/(₁ + ₂)) of approximately 0.68 at M = 1.26 and M = 2.05. The perturbation amplitude is obtained by analyzing a time sequence of pre-shock and post-shock images. The Mikaelian and Dimonte & Schneider models both predict the observed growth in the perturbation amplitude, with better agreement obtained for the data at M = 1.26.