Abstract
In this work, we introduce a recently proposed framework for hybrid LES/RANS modeling and its preliminary applications on simple flows. In this framework, the filtered and Reynolds averaged Navier-Stokes (RANS) equations are solved simultaneously in the whole domain. The novelty of the framework is the dual-solution approach and the consistency between the two solutions achieved via additional drift terms. A hybrid LES/RANS solver is developed within this framework and used to simulate flows in a plane channel and flows in a channel with periodic hills. The results demonstrate that the hybrid solver leads to significantly improved results compared to traditional LES on the same grid.
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Xiao, H., Wild, M., Jenny, P. (2012). Preliminary Evaluation and Applications of a Consistent Hybrid LES/RANS Method. In: Fu, S., Haase, W., Peng, SH., Schwamborn, D. (eds) Progress in Hybrid RANS-LES Modelling. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 117. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31818-4_7
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DOI: https://doi.org/10.1007/978-3-642-31818-4_7
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-31817-7
Online ISBN: 978-3-642-31818-4
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