Third M.I.T. Conference on Computational Fluid and Solid Mechanics June 14–17, 2005  

A two-grid finite volume method for variational multiscale large eddy simulation of turbulent flows

Volker Gravemeier*
Center for Turbulence Research, Stanford University, Stanford, CA 94305, USA

  Full Text
A general class of scale-separating operators based on combined multigrid operators in a two-grid procedure and suited for variational multiscale large eddy simulation is proposed in this work. By applying these scale-separating operators, the complete range of resolved scales is separated into large and small resolved scales. Dynamic as well as constant-coefficient-based subgrid-scale modeling may be performed within this multiscale environment to account for still unresolved scales.

Keywords:  Turbulent flow; Large eddy simulation; Finite volume method; Variational multiscale method; Scale separation

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