Richtmyer-Meshkov experiments on the Nova laser at high compression

Details Richtmyer-Meshkov experiments on the Nova laser at high compression Richtmyer-Meshkov experiments on the Nova laser at high compression

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993phrvl..70.1806d&link_type=abstract

Physical Review Letters, Volume 70, Issue 12, March 22, 1993, pp.1806-1809

Physics

47

Macroinstabilities, Plasma Diagnostic Techniques And Instrumentation

Scientific paper

We investigate the shock induced Richtmyer-Meshkov instability at high compression using the Nova laser. The instability and shock characteristics are measured radiographically in planar two-fluid targets with Atwood number <0. The growth of imposed interfacial perturbations η=η0 sinkx agrees with linear theory if the pre- and postshock initial amplitudes are averaged. When kη~2, the fundamental mode saturates and harmonics emerge producing a slowly developing bubble and spike.

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