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Performance evaluation for robust control of spatial disturbances in channel flow

Performance evaluation for robust control of spatial disturbances in channel flow
Performance evaluation for robust control of spatial disturbances in channel flow
The systems dealt with in flow control problems are, in control terms, very complex, nonlinear and infinite dimensional, even if the fluid flow is comparatively simple. Plane Poiseuille flow, i.e. flow between two infinite parallel plates is one of the simplest and best understood cases of fluid dynamics. Controlling this flow is, however, still a very challenging problem, even if it is assumed that deviations from the steady-state are small enough for the governing equations to be linearized. Recent work has shown that robust control of 2D channel flow is possible without a spatial periodicity assumption. This paper will first execute an H? based robust control law design for the 2D case and then proceed to the relatively open problem of assessing the resulting performance using a Navier Stokes CFD solver as a model of the `real' process. The results in this second part will be on the representation (to ensure realistic results) and modelling of the disturbances used and the control of 3D disturbances.
0780395670
518-523
IEEE
O'Dea, E.
6446e904-25d8-476f-a97c-30cd006e5d76
Tutty, O.R.
c9ba0b98-4790-4a72-b5b7-09c1c6e20375
Rogers, E.
611b1de0-c505-472e-a03f-c5294c63bb72
O'Dea, E.
6446e904-25d8-476f-a97c-30cd006e5d76
Tutty, O.R.
c9ba0b98-4790-4a72-b5b7-09c1c6e20375
Rogers, E.
611b1de0-c505-472e-a03f-c5294c63bb72

O'Dea, E., Tutty, O.R. and Rogers, E. (2005) Performance evaluation for robust control of spatial disturbances in channel flow. In 44th IEEE Conference on Decision and Control, 2005 and 2005 European Control Conference. CDC-ECC '05. IEEE. pp. 518-523 .

Record type: Conference or Workshop Item (Paper)

Abstract

The systems dealt with in flow control problems are, in control terms, very complex, nonlinear and infinite dimensional, even if the fluid flow is comparatively simple. Plane Poiseuille flow, i.e. flow between two infinite parallel plates is one of the simplest and best understood cases of fluid dynamics. Controlling this flow is, however, still a very challenging problem, even if it is assumed that deviations from the steady-state are small enough for the governing equations to be linearized. Recent work has shown that robust control of 2D channel flow is possible without a spatial periodicity assumption. This paper will first execute an H? based robust control law design for the 2D case and then proceed to the relatively open problem of assessing the resulting performance using a Navier Stokes CFD solver as a model of the `real' process. The results in this second part will be on the representation (to ensure realistic results) and modelling of the disturbances used and the control of 3D disturbances.

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More information

Published date: 2005
Venue - Dates: 44th IEEE Conference on Decision Control/European Control Conference, 2005-12-12 - 2005-12-15

Identifiers

Local EPrints ID: 43833
URI: http://eprints.soton.ac.uk/id/eprint/43833
ISBN: 0780395670
PURE UUID: 44b0ee57-7c2a-463d-9eca-91abfe336b00
ORCID for E. Rogers: ORCID iD orcid.org/0000-0003-0179-9398

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Date deposited: 02 Feb 2007
Last modified: 20 Jul 2019 01:23

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Contributors

Author: E. O'Dea
Author: O.R. Tutty
Author: E. Rogers ORCID iD

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