Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
521490 | Journal of Computational Physics | 2009 | 24 Pages |
Abstract
In the variational multiscale (VMS) approach to large eddy simulation (LES), the governing equations are projected onto an a priori scale partitioning of the solution space. This gives an alternative framework for designing and analyzing turbulence models. We describe the implementation of the VMS LES methodology in a high order spectral element method with a nodal basis, and discuss the properties of the proposed scale partitioning. The spectral element code is first validated by doing a direct numerical simulation of fully developed plane channel flow. The performance of the turbulence model is then assessed by several coarse grid simulations of channel flow at different Reynolds numbers.
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Physical Sciences and Engineering
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Computer Science Applications
Authors
Carl Erik Wasberg, Thor Gjesdal, Bjørn Anders Pettersson Reif, Øyvind Andreassen,