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On large eddy simulation of particle laden flow: taking advantage of spectral properties of interpolation schemes for modeling SGS effects

  • Christian Gobert
  • Michael Manhart
Conference paper
Part of the ERCOFTAC Series book series (ERCO, volume 15)

Abstract

This contribution deals with Large-Eddy simulation (LES) of particle-laden flow. State of the art methods are capable to predict the dynamics of small particles in dilute suspensions as long as direct numerical simulation (DNS) is possible. However, as soon as the Reynolds number is too high, DNS is not an alternative and often LES is the method of choice. For LES of particle-laden flow, the effect of the unresolved subgrid scales (SGS) needs to be modeled, a least for small or moderate Stokes numbers of the particles. This means that two turbulence models are necessary. One model for SGS effects on the resolved scales of the carrier fluid flow (such as the Smagorinsky model) and another model for SGS effects on the particle dynamics. Hereinafter, the former type of models is refered to as fluid-LES models and the latter type as particle-LES models.

Keywords

Direct Numerical Simulation Interpolation Scheme Isotropic Turbulence Smagorinsky Model Target Spectrum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Technische Universität MünchenMünchenGermany

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