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Developing fluid structure interaction experimental methodologies For dynamic foil measurements

Developing fluid structure interaction experimental methodologies For dynamic foil measurements
Developing fluid structure interaction experimental methodologies For dynamic foil measurements
The ability to validate computational predictions of either passive adaptive or dynamic response of deformable foils is essential when seeking to optimise high performance yachts. This requires time-accurate and synchronised measurements of the flow field and the shape of the deformable foil. It is important to understand the accuracy with which the onset of dynamic effects such as flutter or stall can influence the structural design and planform. Examples of such design challenges are present in the design of hydrofoils, wing sails and other propulsion systems such as composite propellers. The current research aims to demonstrate the capability of an experimental methodology that can be used as a validation for numerical investigations of dynamic fluid-structure interaction problems. The presented methodology provides high-speed full-field experimental data of: the structural deformations, by means of Digital Image Correlation (DIC), the tip vortex flow field, by means of Particle Image Velocimetry (PIV) and the forces and moments acting on a flexible aerofoil. A comparison between static and dynamic lift coefficients is presented for unsteady dataset and the effect of dynamic loads are analysed both at structural deformation and flow features level. Overall it is found that it is possible to capture synchronised structural deformation and flow field data at reasonable data rates that allow validation assessment of unsteady CFD.
hydrofoil, sailing, vortex flows, PIV, dynamic response
Marimon Giovannetti, Laura
dc044667-ea36-4549-aa51-85830ac86c51
Charalampopoulos, O.
bc3e4fd7-cf99-40f7-9928-bfcc35565add
Banks, Joseph
3e915107-6d17-4097-8e77-99c40c8c053d
Boyd, Stephen
bcbdefe0-5acf-4d6a-8a16-f4abf7c78b10
Turnock, Stephen
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Marimon Giovannetti, Laura
dc044667-ea36-4549-aa51-85830ac86c51
Charalampopoulos, O.
bc3e4fd7-cf99-40f7-9928-bfcc35565add
Banks, Joseph
3e915107-6d17-4097-8e77-99c40c8c053d
Boyd, Stephen
bcbdefe0-5acf-4d6a-8a16-f4abf7c78b10
Turnock, Stephen
d6442f5c-d9af-4fdb-8406-7c79a92b26ce

Marimon Giovannetti, Laura, Charalampopoulos, O., Banks, Joseph, Boyd, Stephen and Turnock, Stephen (2020) Developing fluid structure interaction experimental methodologies For dynamic foil measurements. In Proceedings of the 5th International Conference on Innovation in High Performance Sailing Yachts and Sail-Assisted Ship Propulsion. 11 pp . (In Press)

Record type: Conference or Workshop Item (Paper)

Abstract

The ability to validate computational predictions of either passive adaptive or dynamic response of deformable foils is essential when seeking to optimise high performance yachts. This requires time-accurate and synchronised measurements of the flow field and the shape of the deformable foil. It is important to understand the accuracy with which the onset of dynamic effects such as flutter or stall can influence the structural design and planform. Examples of such design challenges are present in the design of hydrofoils, wing sails and other propulsion systems such as composite propellers. The current research aims to demonstrate the capability of an experimental methodology that can be used as a validation for numerical investigations of dynamic fluid-structure interaction problems. The presented methodology provides high-speed full-field experimental data of: the structural deformations, by means of Digital Image Correlation (DIC), the tip vortex flow field, by means of Particle Image Velocimetry (PIV) and the forces and moments acting on a flexible aerofoil. A comparison between static and dynamic lift coefficients is presented for unsteady dataset and the effect of dynamic loads are analysed both at structural deformation and flow features level. Overall it is found that it is possible to capture synchronised structural deformation and flow field data at reasonable data rates that allow validation assessment of unsteady CFD.

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Marimon Charalampopoulos
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More information

Accepted/In Press date: 10 May 2020
Keywords: hydrofoil, sailing, vortex flows, PIV, dynamic response

Identifiers

Local EPrints ID: 443098
URI: http://eprints.soton.ac.uk/id/eprint/443098
PURE UUID: 49df50a3-1823-4319-96aa-3a7fb26658dc
ORCID for Joseph Banks: ORCID iD orcid.org/0000-0002-3777-8962
ORCID for Stephen Turnock: ORCID iD orcid.org/0000-0001-6288-0400

Catalogue record

Date deposited: 11 Aug 2020 16:30
Last modified: 17 Nov 2020 17:39

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