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Capturing transition features around a wing by reduced-order modeling based on compressible Navier-Stokes equations

Bourguet, Rémi and Braza, Marianna and Sevrain, Alain and Bouhadji, Abdellatif Capturing transition features around a wing by reduced-order modeling based on compressible Navier-Stokes equations. (2009) Physics of Fluids, 21. 1-11. ISSN 1070-6631

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Official URL: http://dx.doi.org/10.1063/1.3234398

Abstract

The three-dimensional transition in the flow around a NACA0012 wing of constant spanwise section at Mach number 0.3, Reynolds number 800, and incidence 20° is investigated by direct numerical simulation and reduced-order modeling. The interaction between the von Kármán and the secondary instabilities is analyzed. Irregular events in the flow transition modulating the spanwise undulation are highlighted and quantified. These transition features, including "local intermittencies" in the secondary instability pattern, are efficiently captured by a reduced-order model derived by means of the Galerkin projection of the compressible flow Navier-Stokes equations onto a truncated proper orthogonal decomposition basis.

Item Type:Article
Additional Information:Thanks to AIP editor. The original PDF can be found at Physics of Fluids website: http://scitation.aip.org/content/aip/journal/pof2/21/9/10.1063/1.3234398
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Massachusetts Institute of Technology - MIT (USA)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Ballard Power Systems (CANADA)
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Deposited On:15 Nov 2013 14:57

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