| HAL : hal-00433158, version 1 |
| DOI : 10.1007/s00162-010-0195-5 |
| Fiche détaillée | Récupérer au format |
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| Theoretical and Computational Fluid Dynamics 25, 1 (2011) 195-207 |
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| Control of a separated boundary layer: Reduced-order modeling using global modes revisited |
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| Uwe Ehrenstein 1Pierre-Yves Passaggia 1 |
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| (2011) |
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| The possibility of model reduction using global modes is readdressed, aiming at the controlling of a globally unstable separation bubble induced by a bump geometry. A combined oblique and orthogonal projection approach is proposed to design an estimator and controller in a Riccati-type feedback setting. An input-output criterion is used to appropriately select the modes of the projection basis. The full-state linear instability dynamics is shown to be successfully controlled by the feedback coupling with controllers of moderate degrees of freedom. |
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| 1 : | Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE) |
| CNRS : UMR6594 – Université de Provence - Aix-Marseille I – Université de la Méditerranée - Aix-Marseille II – Ecole Centrale de Marseille | |
| 2 : | Laboratoire Jean Alexandre Dieudonné (JAD) |
| CNRS : UMR6621 – Université Nice Sophia Antipolis [UNS] | |
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| Domaine | : | Physique/Mécanique/Mécanique des fluides Sciences de l'ingénieur/Mécanique/Mécanique des fluides |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00433158, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00433158 | |
| oai:hal.archives-ouvertes.fr:hal-00433158 | |
| Contributeur : Uwe Ehrenstein | |
| Soumis le : Mercredi 18 Novembre 2009, 12:32:30 | |
| Dernière modification le : Mercredi 16 Janvier 2013, 08:56:06 | |