FM11L_12624:Thu:0950:306

XXI International Congress of Theoretical and Applied Mechanics
Warsaw, Poland, August 15-21, 2004

Model - Based Control of Shear Flows Using Low - Dimensional Galerkin - and Vortex Models

Mark Pastoor ⁽¹⁾, Rudibert King ⁽¹⁾, Bernd R. Noack ⁽²⁾, Gilead Tadmor ⁽³⁾, Marek Morzynski ⁽⁴⁾

1. Institut fur Prozesstechnik, Anlagentechnik und Technische Akustik,Technische Universitat Berlin, Germany
2. Hermann-Fottinger-Institut fur Stromungsmechanik, Technische Universitat Berlin, Germany
3. Department of Electrical and Computer Engineering, Northeastern University, Boston, USA
4. Institute of Combustion Engines and Basics of Machine Design, Poznan University of Technology, Poland

The present study proposes a model-based flow control strategy using low-dimensional coherent-structure representations. This strategy is applied to the suppression of a von~K\'arm\'an vortex street and the mixing enhancement of a wall-bounded shear-layer. Here, low-dimensional Galerkin and vortex models are used as a `plant' for controller and observer design. The control approach is validated against direct numerical simulations.

Extended Summary (PDF)

BACK