Exploring Richtmyer–Meshkov instability phenomena and ejecta cloud physics

Zellner, M. B.; Buttler, W. T.
September 2008
Applied Physics Letters;9/15/2008, Vol. 93 Issue 11, p114102
Academic Journal
This effort investigates ejecta cloud expansion from a shocked Sn target propagating into vacuum. To assess the expansion, dynamic ejecta cloud density distributions were measured via piezoelectric pin diagnostics offset at three heights from the target free surface. The dynamic distributions were first converted into static distributions, similar to a radiograph, and then self compared. The cloud evolved self-similarly at the distances and times measured, inferring that the amount of mass imparted to the instability, detected as ejecta, either ceased or approached an asymptotic limit.


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