Large-eddy simulation of Richtmyer-Meshkov Instability

D. J. Hill, C. Pantano, D. I. Pullin

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

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 Ms = 1.5, density ratio r = 5, and constituent gases air and SF6. 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.

Original languageEnglish (US)
Title of host publicationComplex Effects in Large Eddy Simulations
EditorsStavros Kassinos, Carlos Langer, Gianluca Iaccarino, Parviz Moin
Pages263-271
Number of pages9
StatePublished - Dec 1 2007

Publication series

NameLecture Notes in Computational Science and Engineering
Volume56
ISSN (Print)1439-7358

ASJC Scopus subject areas

  • Modeling and Simulation
  • Engineering(all)
  • Discrete Mathematics and Combinatorics
  • Control and Optimization
  • Computational Mathematics

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  • Cite this

    Hill, D. J., Pantano, C., & Pullin, D. I. (2007). Large-eddy simulation of Richtmyer-Meshkov Instability. In S. Kassinos, C. Langer, G. Iaccarino, & P. Moin (Eds.), Complex Effects in Large Eddy Simulations (pp. 263-271). (Lecture Notes in Computational Science and Engineering; Vol. 56).