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Directly coupled fluid structural model of a ship rudder behind a propeller

Directly coupled fluid structural model of a ship rudder behind a propeller
Directly coupled fluid structural model of a ship rudder behind a propeller
A computational method is presented that models fluid structural interaction problems for three-dimensional marine structures. Flow can be modelled with either potential or viscous incompressible flow. The structure deformation is modelled by a shell finite element formulation. The two fields are coupled by a domain decomposition approach that uses virtual surfaces to transfer information. A typical spade rudder has been modelled for steady-state three-dimensional problems in a free stream and in way of a propeller race. These computational models have been tested for mesh dependancy in both the fluid and structural domains as well as the virtual surface definition. The results show increased correlation to experimental data from uncoupled hydrodynamic modelling as well as detailed structural deformation. Of note is the variation in rudder stock bending moment from that utilised by classification society scantling rules.
coupled fluid–structure interaction, virtual surface, rudder, propeller
0951-8339
53-72
Turnock, S.R.
bc14cb54-d232-4cef-ad3c-a4fd031b4052
Wright, A.M.
fd554bca-e486-4d60-aad9-1ea3961cfef2
Turnock, S.R.
bc14cb54-d232-4cef-ad3c-a4fd031b4052
Wright, A.M.
fd554bca-e486-4d60-aad9-1ea3961cfef2

Turnock, S.R. and Wright, A.M. (2000) Directly coupled fluid structural model of a ship rudder behind a propeller. Marine Structures, 13 (1), 53-72. (doi:10.1016/S0951-8339(00)00009-5).

Record type: Article

Abstract

A computational method is presented that models fluid structural interaction problems for three-dimensional marine structures. Flow can be modelled with either potential or viscous incompressible flow. The structure deformation is modelled by a shell finite element formulation. The two fields are coupled by a domain decomposition approach that uses virtual surfaces to transfer information. A typical spade rudder has been modelled for steady-state three-dimensional problems in a free stream and in way of a propeller race. These computational models have been tested for mesh dependancy in both the fluid and structural domains as well as the virtual surface definition. The results show increased correlation to experimental data from uncoupled hydrodynamic modelling as well as detailed structural deformation. Of note is the variation in rudder stock bending moment from that utilised by classification society scantling rules.

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More information

Published date: 2000
Keywords: coupled fluid–structure interaction, virtual surface, rudder, propeller

Identifiers

Local EPrints ID: 21865
URI: http://eprints.soton.ac.uk/id/eprint/21865
ISSN: 0951-8339
PURE UUID: 38ef036f-a9c6-4845-a3f8-c731596b3259

Catalogue record

Date deposited: 10 Mar 2006
Last modified: 15 Mar 2024 06:33

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Contributors

Author: S.R. Turnock
Author: A.M. Wright

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