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Large-Eddy Simulation of Richtmyer-Meshkov Instability

Hill, D. J. and Pantano, C. and Pullin, D. I. (2007) Large-Eddy Simulation of Richtmyer-Meshkov Instability. In: Complex Effects in Large Eddy Simulations. Lecture Notes in Computational Science and Engineering. Vol.56. Springer , pp. 263-271. ISBN 978-3-540-34233-5.

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We present results from large-eddy simulations (LES) of three-dimensional Richtmyer-Meshkov (RM) instability in a rectangular tube with reshock off the tube endwall. A hybrid numerical method is used that is shock capturing but which reverts to a centered scheme with low numerical viscosity in regions of smooth flow. The subgrid-scale (SGS) model is the stretched-vortex (SV) model [1]. The shock strength, tube geometry, gas composition, initial conditions and initial interface disturbance were tailored to the experimental conditions of Vetter & Sturtevant [2] with shock Mach number M_s = 1.5, density ratio r = 5, and constituent gases air and SF_6. Use of the SV SGS model allows continuation of radial velocity spectra in the center-plane of the mixing layer, to subgrid scales, including the effect of anisotropy and self-consistent calculation of the viscous cutoff scale.

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Additional Information:© 2007 Springer. This work was supported by the Advanced Simulation and Computing (ASC) Program under subcontract no. B341492 of DOE contract W-7405-ENG-48. The authors would like to acknowledge the many helpful conversations with P.E. Dimotakis and D.I. Meiron.
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Advanced Simulation and Computing (ASC) Program, DOEB341492
Series Name:Lecture Notes in Computational Science and Engineering
Record Number:CaltechAUTHORS:20100916-112754310
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19981
Deposited By: Jason Perez
Deposited On:17 Sep 2010 21:11
Last Modified:08 Nov 2021 23:56

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