Simple potential-flow model of Rayleigh-Taylor and Richtmyer-Meshkov instabilities for all density ratios.
Simple potential-flow model of Rayleigh-Taylor and Richtmyer-Meshkov instabilities for all density ratios.
复制标题
DOI：
10.1103/physreve.67.026301
复制
发表时间：
2003-02
期刊：
影响因子：
--
通讯作者：
Sung-Ik Sohn
中科院分区：
文献类型：
--
作者：
Sung-Ik Sohn
我们将不稳定界面的Layzer型模型推广到任意密度比的系统。对瑞利-泰勒（RT）和里希特迈尔-梅什科夫（RM）不稳定性气泡生长速率的预测与数值结果吻合较好。我们提出的理论预测的RT和RM气泡的有限密度比在二维和三维的渐近增长率。
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.