Active control of flows with trapped vortices
Kerimbekov, R.M. and Tutty, O.R. (2007) Active control of flows with trapped vortices. At IUTAM Symposium on Unsteady Separated Flows and their Control, Corfu, Greece, 18 - 22 Jun 2007. 5pp, 1-5. (Submitted).
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An approach to developing active control strategies for high Reynolds number flows with trapped vortices is presented. The problem considered is the stabilisation of the vortex in a special cavity on the airfoil using suction as an actuator. The flow dynamics are modelled by the parallel discrete vortex method capable of handling wall irregularities, arbitrary boundary conditions, and turbulence. System identification is performed based on the open-loop analysis with the constant flow rate suction. Feedback control results show that a properly designed linear PI controller prevents the large-scale vortex shedding from the cavity region and reduces considerably flow unsteadiness in the downstream boundary layer.
|Item Type:||Conference or Workshop Item (Poster)|
|Keywords:||trapped vortex, discrete vortex method, feedback control design|
|Subjects:||T Technology > TJ Mechanical engineering and machinery
Q Science > QC Physics
|Divisions :||University Structure - Pre August 2011 > School of Engineering Sciences > Aerodynamics & Flight Mechanics
|Accepted Date and Publication Date:||
|Date Deposited:||19 Oct 2007|
|Last Modified:||27 Mar 2014 18:32|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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