Active control of flows with trapped vortices
Active control of flows with trapped vortices
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.
trapped vortex, discrete vortex method, feedback control design
1-5
Kerimbekov, R.M.
b5329b6d-64cb-455d-9b51-4adb0340f792
Tutty, O.R.
1c3a81a7-7af9-4cbd-a887-5805447fad85
Kerimbekov, R.M.
b5329b6d-64cb-455d-9b51-4adb0340f792
Tutty, O.R.
1c3a81a7-7af9-4cbd-a887-5805447fad85
Kerimbekov, R.M. and Tutty, O.R.
(2007)
Active control of flows with trapped vortices.
IUTAM Symposium on Unsteady Separated Flows and their Control, Corfu, Greece.
17 - 21 Jun 2007.
.
(Submitted)
Record type:
Conference or Workshop Item
(Poster)
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.
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Submitted date: 2007
Venue - Dates:
IUTAM Symposium on Unsteady Separated Flows and their Control, Corfu, Greece, 2007-06-17 - 2007-06-21
Keywords:
trapped vortex, discrete vortex method, feedback control design
Organisations:
Aerodynamics & Flight Mechanics
Identifiers
Local EPrints ID: 49023
URI: http://eprints.soton.ac.uk/id/eprint/49023
PURE UUID: 896837f2-1afb-4bb0-b05d-51caea8ed099
Catalogue record
Date deposited: 19 Oct 2007
Last modified: 11 Dec 2021 16:52
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Contributors
Author:
R.M. Kerimbekov
Author:
O.R. Tutty
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