### 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 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.

Original language | English (US) |
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Title of host publication | Complex Effects in Large Eddy Simulations |

Editors | Stavros Kassinos, Carlos Langer, Gianluca Iaccarino, Parviz Moin |

Pages | 263-271 |

Number of pages | 9 |

State | Published - Dec 1 2007 |

### Publication series

Name | Lecture Notes in Computational Science and Engineering |
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Volume | 56 |

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

*Complex Effects in Large Eddy Simulations*(pp. 263-271). (Lecture Notes in Computational Science and Engineering; Vol. 56).