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, 56 . Springer , pp. 263-271. ISBN 978-3-540-34233-5 http://resolver.caltech.edu/CaltechAUTHORS:20100916-112754310
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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 . The shock strength, tube geometry, gas composition, initial conditions and initial interface disturbance were tailored to the experimental conditions of Vetter & Sturtevant  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.
|Item Type:||Book Section|
|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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|Deposited By:||Jason Perez|
|Deposited On:||17 Sep 2010 21:11|
|Last Modified:||26 Dec 2012 12:25|
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