Abstract
We propose a new mixed model for Large Eddy-Simulation based on the 3D spatial velocity increment. This approach blends the non-linear properties of the Increment model (Brun & Friedrich (2001)) with the eddy viscosity characteristics of the Structure Function model (Métais & Lesieur (1992)). The behaviour of this subgrid scale model is studied both via a priori tests of a plane jet at ReH=3000 and Large Eddy-Simulation of a round jet at ReD=25000. This approach allows to describe both forward and backward energy transfer encountered in transitional shear flows.
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Brun, C., Friedrich, R., Da Silva, C.B., Métais, O. (2002). A New Mixed Model Based on the Velocity Structure Function. In: Friedrich, R., Rodi, W. (eds) Advances in LES of Complex Flows. Fluid Mechanics and Its Applications, vol 65. Springer, Dordrecht. https://doi.org/10.1007/0-306-48383-1_4
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DOI: https://doi.org/10.1007/0-306-48383-1_4
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-0486-5
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