2012 | OriginalPaper | Buchkapitel
Interfacing Boundary Conditions towards Zonal RANS/LES
verfasst von : Aurelien Hemon, Song Fu, Liang Shao
Erschienen in: Progress in Hybrid RANS-LES Modelling
Verlag: Springer Berlin Heidelberg
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An improvement of the Vortex Method proposed by Sergent [19] and Mathey
et al
. [14] is presented. The method can be used to generate inflow boundary conditions for a LES or instantaneous interfacing conditions in a zonal RANS/LES simulation. The method is tested in a channel flow case at
Re
τ
= 590 and compared to a bi-periodic LES case. Analysis of the generated field and its evolution in the streamwise direction is provided using the vorticity fluctuations and the velocity-derivative skewness and shows this method as viable and cost-effective.