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Experiments in Fluids
Published in: Experiments in Fluids 10/2016

01-10-2016 | Letter

Feedback control of bimodal wake dynamics

Authors: Ruiying Li, Diogo Barros, Jacques Borée, Olivier Cadot, Bernd R. Noack, Laurent Cordier

Published in: Experiments in Fluids | Issue 10/2016

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Abstract

Feedback control is applied to symmetrize the bimodal dynamics of a turbulent blunt body wake. The flow is actuated with two lateral slit jets and monitored with pressure sensors at the rear surface. The physics-based controller is inferred from preliminary open-loop tests and is capable of symmetrizing the wake. A slight pressure recovery is achieved due to the net balance between the favourable effect of wake symmetrization and adverse effect of shear-layer mixing and vortex shedding amplification.
previous article Image processing using proper orthogonal and dynamic mode decompositions for the study of cavitation developing on a NACA0015 foil
next article Extremum seeking to control the amplitude and frequency of a pulsed jet for bluff body drag reduction

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Literature
Ahmed SR, Ramm G, Faltin G (1984) Some salient features of the time-averaged ground vehicle wake. SAE Tech. paper, technical report
Barros D (2015) Wake and drag manipulation of a bluff body using fluidic forcing. Ph.D. thesis, École Nationale Supérieure de Mécanique et d‘Aérotechnique (ISAE-ENSMA)
Barros D, Borée J, Noack BR, Spohn A (2016a) Resonances in the forced turbulent wake past a 3D blunt body. Phys Fluids 28(6):065104CrossRef
Barros D, Borée J, Noack BR, Spohn A, Ruiz T (2016b) Bluff body drag manipulation using pulsed jets and Coanda effect. J Fluid Mech (in print)
Brunton SL, Noack BR (2015) Closed-loop turbulence control: progress and challenges. Appl Mech Rev 67(5):050801CrossRef
Choi H, Moin P, Kim J (1994) Active turbulence control for drag reduction in wall-bounded flows. J Fluid Mech 262:75–110CrossRefMATH
Evrard A, Cadot O, Herbert V, Ricot D, Vigneron R, Délery J (2016) Fluid force and symmetry breaking modes of a 3D bluff body with a base cavity. J Fluids Struct 61:99–114CrossRef
Grandemange M, Gohlke M, Cadot O (2012) Reflectional symmetry breaking of the separated flow over three-dimensional bluff bodies. Phys Rev E 86:035302CrossRef
Grandemange M, Gohlke M, Cadot O (2013) Turbulent wake past a three-dimensional blunt body. Part 1. Global modes and bi-stability. J Fluid Mech 722:51–84CrossRefMATH
Grandemange M, Gohlke M, Cadot O (2014) Turbulent wake past a three-dimensional blunt body. Part 2. Experimental sensitivity analysis. J Fluid Mech 752:439–461CrossRefMATH
Oxlade AR, Morrison JF, Qubain A, Rigas G (2015) High-frequency forcing of a turbulent axisymmetric wake. J Fluid Mech 770:305–318CrossRef
Pastoor M, Henning L, Noack BR, King R, Tadmor G (2008) Feedback shear layer control for bluff body drag reduction. J Fluid Mech 608:161–196CrossRefMATH
Pfeiffer J, King R (2012) Multivariable closed-loop flow control of drag and yaw moment for a 3D bluff body. AIAA paper (2012–2802)
Rigas G, Oxlade AR, Morgans AS, Morrison JF (2014) Low-dimensional dynamics of a turbulent axisymmetric wake. J Fluid Mech 755:R5CrossRef
Rigas G, Morgans AS, Brackston RD, Morrison JF (2015) Diffusive dynamics and stochastic models of turbulent axisymmetric wakes. J Fluid Mech 778:R2MathSciNetCrossRef
Metadata
Title
Feedback control of bimodal wake dynamics
Authors
Ruiying Li
Diogo Barros
Jacques Borée
Olivier Cadot
Bernd R. Noack
Laurent Cordier
Publication date
01-10-2016
Publisher
Springer Berlin Heidelberg
Published in
Experiments in Fluids / Issue 10/2016
Print ISSN: 0723-4864
Electronic ISSN: 1432-1114
DOI
https://doi.org/10.1007/s00348-016-2245-2

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