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Published on: July 19, 2016
Simple potential-flow model of Rayleigh-Taylor and Richtmyer-Meshkov instabilities for all density ratios
1Division of Science, Tongmyong University of Information Technology, 535 Yongdang-dong, Pusan 608-711, Korea. sohnsi@tmic.tit.ac.kr
Abstract:
We generalize the Layzer-type model for unstable interfaces to the system of arbitrary density ratio. The predictions from the generalized model for bubble growth rates of Rayleigh-Taylor (RT) and Richtmyer-Meshkov (RM) instabilities are in good agreement with numerical results. We present the theoretical prediction for asymptotic growth rates for RT and RM bubbles for finite density ratios in two and three dimensions.
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