Variational multiscale turbulence modeling in a high-order spectral element method

Date Issued
2006
Keywords
Turbulent strømning
Project number
2006/02643
Permalink
http://hdl.handle.net/20.500.12242/1955
Collection
Rapporter
06-02643.pdf
Size: 485k
Abstract
One of the more promising recent approaches to turbulence modelling is the Variational Myltiscale Large Eddy Simulation (VMS LES) method proposed by Hughes et al.[Comp. Visual. Sci., vol 3, pp 47-59, 2000]. This method avoids several conceptual issues of traditional filter-based LES by employing a priori scale partitioning in the discretization of the Navier-Stokes equations. Most applications of VMS LES to date have been based on hierarchical bases, in particular global spectral methods, in which scale partitioning is straightforward. In the present work we describe the implementation of the methodology in a three-dimensional high-order spectral element method with a nodal basis. We report results from c
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