Direct simulation Monte Carlo investigation of the Richtmyer-Meshkov instability
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
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. The DSMC simulations indicate that there is a universal behavior, consistent with previous work in this field that RMI growth follows.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1235325
- Report Number(s):
- SAND--2015-1855J; 579670
- Journal Information:
- Physics of Fluids, Journal Name: Physics of Fluids Journal Issue: 8 Vol. 27; ISSN 1070-6631; ISSN PHFLE6
- Publisher:
- American Institute of PhysicsCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Simulations and models for the Richtmyer–Meshkov instability with broadband perturbations
Simulations and models for the Richtmyer– Meshkov instability with broadband perturbations
Journal Article
·
Mon Feb 19 19:00:00 EST 2024
· Physics of Fluids
·
OSTI ID:2565525
Simulations and models for the Richtmyer– Meshkov instability with broadband perturbations
Technical Report
·
Mon Feb 19 23:00:00 EST 2024
·
OSTI ID:2386901