Direct simulation Monte Carlo investigation of the Richtmyer-Meshkov instability

被引：51

作者：

Gallis, M. A. ^{[1
]}

Koehler, T. P. ^{[1
]}

Torczynski, J. R. ^{[1
]}

Plimpton, S. J. ^{[2
]}

机构：

[1] Sandia Natl Labs, Engn Sci Ctr, Albuquerque, NM 87185 USA

[2] Sandia Natl Labs, Comp Res Ctr, Albuquerque, NM 87185 USA

来源：

PHYSICS OF FLUIDS | 2015年 / 27卷 / 08期

关键词：

GROWTH;

D O I：

10.1063/1.4928338

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The Richtmyer-Meshkov instability (RMI) is investigated using the Direct Simulation Monte Carlo (DSMC) method of molecular gas dynamics. Due to the inherent statistical noise and the significant computational requirements, DSMC is hardly ever applied to hydrodynamic flows. Here, DSMC RMI simulations are performed to quantify the shock-driven growth of a single-mode perturbation on the interface between two atmospheric-pressure monatomic gases prior to re-shocking as a function of the Atwood and Mach numbers. The DSMC results qualitatively reproduce all features of the RMI and are in reasonable quantitative agreement with existing theoretical and empirical models. Consistent with previous work in this field, the DSMC simulations indicate that RMI growth follows a universal behavior. (C) 2015 AIP Publishing LLC.

引用

页数：16

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