Feedback control in spatially growing boundary layers
2006 (English)Conference paper (Refereed)
Linear feedback control has been applied to transitional boundary layer flows. Information from wall-mounted sensors is used to estimate the flow state. The estimated state is then used to compute the optimal feedback control which is applied as blowing and suction with zero net mass-flux through the wall. The performance of the controller is tested in direct numerical simulations of a spatially growing Falkner-Skan- Cooke boundary layer where an inflectional instability is triggered. The extension to spatial boundary layer flows is an important step towards real applications.
Place, publisher, year, edition, pages
2006. 243-248 p.
, Fluid Mechanics and its Applications, ISSN 09265112
Control, Estimation, Falkner-Skan-Cooke, Flow control, LQG, Navier-Stokes equations, Orr-Sommerfeld/Squire
Fluid Mechanics and Acoustics
IdentifiersURN: urn:nbn:se:kth:diva-155080ISI: 000236905600032ScopusID: 2-s2.0-84859841935ISBN: 9781402034596OAI: oai:DiVA.org:kth-155080DiVA: diva2:760912
6th IUTAM Symposium on Laminar-Turbulent Transition, Bangalore, INDIA, DEC 13-17, 2004
QC 201411052014-11-052014-10-302014-11-05Bibliographically approved