Growth rate of the Richtmyer-Meshkov instability at shocked interfaces.
Growth rate of the Richtmyer-Meshkov instability at shocked interfaces.
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DOI：
10.1103/physrevlett.71.2903
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发表时间：
1993-11
影响因子：
8.6
通讯作者：
Mikaelian
中科院分区：
文献类型：
--
作者：
Mikaelian
我们在数值模拟中发现了几种情况，其中 Richtmyer 的处方未能给出线性状态下 Richtmyer-Meshkov 不稳定性的正确增长率。另一种表达方式，源自 Fraley [Phys. Fluids 29, 376 (1986)]，与我们的模拟一致。我们讨论了最近的实验并报告了两种新型的扰动冻结，即单激波和双界面，它们与之前报道的双激波冻结完全不同。
We have found several cases in our numerical simulations where Richtmyer's prescription fails to give the correct growth rate for the Richtmyer-Meshkov instability in the linear regime. Another expression, due to Fraley [Phys. Fluids 29, 376 (1986)], agrees with our simulations. We discuss recent experiments and report two new types of perturbation freeze-out, single-shock and double-interface, which are quite distinct from the previously reported double-shock freeze-out.