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research article
Control of a separated boundary layer: reduced-order modeling using global modes revisited
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.
Type
research article
Authors
Publication date
2011
Published in
Volume
25
Issue
4
Start page
195
End page
207
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 18, 2010
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