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Turbulent mixing induced by Richtmyer-Meshkov instability

Richtmyer-Meshkov instability is studied in shock tube experiments with an Atwood number of 0.7. The interface is formed in a vertical shock tube using opposed gas flows, and three-dimensional random initial interface perturbations are generated by the vertical oscillation of gas column producing Faraday waves. Planar Laser Mie scattering is used for flow visualization and for measurements of the mixing process. Experimental image sequences are recorded at 6 kHz frequency and processed to obtain the time dependent variation of the integral mixing layer width. Measurements of the mixing layer width are compared with Mikaelian's [1] model in order to extract the growth exponent. where a fairly wide range of values is found varying from theta approximate to 0.2 to 0.6.

Identiferoai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/625211
Date January 2017
CreatorsKrivets, V. V., Ferguson, K. J., Jacobs, J. W.
ContributorsUniv Arizona, Dept Aerosp & Mech Engn
PublisherAMER INST PHYSICS
Source SetsUniversity of Arizona
LanguageEnglish
Detected LanguageEnglish
TypeArticle
Rights© 2017, AIP Publishing LLC
Relationhttp://aip.scitation.org/doi/abs/10.1063/1.4971732

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