The University of Southampton
University of Southampton Institutional Repository

Numerical simulation and control of a fluid structure interaction for a plate in a transverse flow

Numerical simulation and control of a fluid structure interaction for a plate in a transverse flow
Numerical simulation and control of a fluid structure interaction for a plate in a transverse flow
The control of a moving structure in an unbounded flow has numerous applications in engineering, such as the aileron on an airplane. Here an approach is proposed where a CFD method is coupled with a controller to provide a qualitative flow model, and a tool for the development and the validation of the control scheme. A rotating rigid flat plate in transverse flow is considered. For the CFD, a discrete vortex method is used due to its relevance for separated flows, which implies approximating the flat plate by a thin ellipse. The simulation for a fixed plate has been completed with a plate approximated by a 20:1 ellipse and placed in an inviscid flow. A comparison with an image method is also undertaken. The results show encouraging features for modelling the vortex street, but also problems in the transient behaviour of the flow. The control method is based on fuzzy logic, and has shown a remarkable ability to adapt to the nonlinear nature of the force generated by the flow/structure system. Comparison is made with more classical schemes such as a controller based on optimal control theory using an intermediary flow/structure model, similar to a gain scheduling model, instead of the full simulation.
Sourdille, Etienne
790aa3e3-f0ee-4997-b717-e89d0ebedb2b
Sourdille, Etienne
790aa3e3-f0ee-4997-b717-e89d0ebedb2b

Sourdille, Etienne (2006) Numerical simulation and control of a fluid structure interaction for a plate in a transverse flow. University of Southampton, School of Engineering Sciences, Doctoral Thesis, 387pp.

Record type: Thesis (Doctoral)

Abstract

The control of a moving structure in an unbounded flow has numerous applications in engineering, such as the aileron on an airplane. Here an approach is proposed where a CFD method is coupled with a controller to provide a qualitative flow model, and a tool for the development and the validation of the control scheme. A rotating rigid flat plate in transverse flow is considered. For the CFD, a discrete vortex method is used due to its relevance for separated flows, which implies approximating the flat plate by a thin ellipse. The simulation for a fixed plate has been completed with a plate approximated by a 20:1 ellipse and placed in an inviscid flow. A comparison with an image method is also undertaken. The results show encouraging features for modelling the vortex street, but also problems in the transient behaviour of the flow. The control method is based on fuzzy logic, and has shown a remarkable ability to adapt to the nonlinear nature of the force generated by the flow/structure system. Comparison is made with more classical schemes such as a controller based on optimal control theory using an intermediary flow/structure model, similar to a gain scheduling model, instead of the full simulation.

Text
SOURDILLE_Etienne.pdf - Other
Download (55MB)

More information

Published date: 2006
Organisations: University of Southampton

Identifiers

Local EPrints ID: 47114
URI: http://eprints.soton.ac.uk/id/eprint/47114
PURE UUID: e02c941c-7527-49e6-b2d8-0475ae583a3b

Catalogue record

Date deposited: 13 Aug 2007
Last modified: 13 Mar 2019 21:00

Export record

Contributors

Author: Etienne Sourdille

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×