Direct simulation Monte Carlo investigation of the Richtmyer-Meshkov instability

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...

Full description

Saved in:
Bibliographic Details
Published in:Physics of fluids (1994) 2015-08, Vol.27 (8)
Main Authors: Gallis, M. A., Koehler, T. P., Torczynski, J. R., Plimpton, S. J.
Format: Article
Language:English
Subjects:
Atmospheric models
Computer simulation
Direct simulation Monte Carlo method
Fluid dynamics
Gas dynamics
gas liquid interfaces
interface diffusion
Mach numbers
MATHEMATICS AND COMPUTING
Molecular gases
Monatomic gases
Physics
Richtmeyer-Meshkov instability
Richtmyer Meshkov instabilities
shock waves
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1070-6631
1089-7666
DOI:10.1063/1.4928338