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Fully compressible solutions for early stage Richtmyer–Meshkov instability

Journal Article · · Computers and Fluids
 [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
+ Show Author Affiliations
Here, we will consider the effects of compressibility and viscosity on the early dynamics of the Richtmyer–Meshkov instability (RMI). In particular, we will combine theory, scaling, and high resolution simulation of RMI to probe the details of the initial compression and the subsequent viscous damping as a shock interacts with a density discontinuity. We will propose a refinement of the classic 1D model for the linear regime of RMI that, for small initial perturbation wavelengths, more accurately reproduces the 2D dynamics of a fully resolved numerical simulation.
Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1331272
Alternate ID(s):
OSTI ID: 1419376
Report Number(s):
LA-UR--16-21068
Journal Information:
Computers and Fluids, Journal Name: Computers and Fluids; ISSN 0045-7930
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
Richtmyer Meshkov Instability
direct numerical simulation
fully resolved Navier–Stokes simulations