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Simulation of low Reynolds number flow control over a backward-facing step using pulsed inlet velocities

Emmanuel Creusé 1, 2 Iraj Mortazavi 3, 4 
1 SIMPAF - SImulations and Modeling for PArticles and Fluids
LPP - Laboratoire Paul Painlevé - UMR 8524, Inria Lille - Nord Europe
4 MC2 - Modélisation, contrôle et calcul
Inria Bordeaux - Sud-Ouest, UB - Université de Bordeaux, CNRS - Centre National de la Recherche Scientifique : UMR5251
Abstract : In this work a control procedure is applied to a two-dimensional slightly compressible flow over a backward-facing step. This low Reynolds number flow is computed by a Direct Numerical Simulation method and validated for some existing experimental and numerical results. Then, an oscillating inlet flow variation is applied to control the flow behavior inside the channel. The amplitude and the frequency effects are especially analyzed to obtain a better understanding of their influence on the shedding evolution and the recirculation zone behavior.
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https://hal.inria.fr/hal-00768712
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Submitted on : Sunday, December 23, 2012 - 9:43:46 AM
Last modification on : Wednesday, March 23, 2022 - 3:50:58 PM

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  • HAL Id : hal-00768712, version 1

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Emmanuel Creusé, Iraj Mortazavi. Simulation of low Reynolds number flow control over a backward-facing step using pulsed inlet velocities. Applied Mathematics Research eXpress, Oxford University Press (OUP): Policy H - Oxford Open Option A, 2004, 4, pp.133-152. ⟨hal-00768712⟩

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