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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Description/Abstract

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)
Related URLs:
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
ePrint ID: 49023
Date Deposited: 19 Oct 2007
Last Modified: 27 Mar 2014 18:32
URI: http://eprints.soton.ac.uk/id/eprint/49023

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