Simulation of the flow past a circular cylinder in the supercritical regime by blending RANS and variational-multiscale LES models - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Journal Articles Journal of Fluids and Structures Year : 2014

Simulation of the flow past a circular cylinder in the supercritical regime by blending RANS and variational-multiscale LES models

Abstract

A strategy which blends a Variational Multiscale Large Eddy Simulation model (VMS-LES) and a RANS model in a hybrid approach is investigated. A smooth blending function, which is based on the value of a blending pa-rameter, is used for switching from VMS-LES to RANS. Different definitions of the blending parameter are investigated. The capabilities of the novel hy-brid approach are appraised in the simulation of the flow around a circular cylinder at a Reynolds number 1.4 · 10 5 , based on the freestream velocity and on the cylinder diameter, in presence of turbulent boundary-layer due to tur-bulent inflow conditions. A second study at Reynolds numbers from 6.7 · 10
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Dates and versions

hal-01083801 , version 1 (18-11-2014)

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Carine Moussaed, Maria Vittoria, Stephen Wornom, Bruno Koobus, Alain Dervieux. Simulation of the flow past a circular cylinder in the supercritical regime by blending RANS and variational-multiscale LES models. Journal of Fluids and Structures, 2014, 47, pp.114 - 123. ⟨10.1016/j.jfluidstructs.2013.11.006⟩. ⟨hal-01083801⟩
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