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Forces on a body of revolution in a vortex flow field

Record type: Article

The development of mathematical models of marine vehicle manoeuvring has had a long history. To help quantify different and diverse theories a series of experiments have been proposed. The purpose of these experiments was to determine the out-of-plane forces on an underwater vehicle due to vortex shedding. This paper describes experiments conducted in a Circulating Water Channel to measure pressure and vorticity values at stations along a body of revolution. The-model was a 1 metre long body of revolution, diameter 0.125 metres with a detachable NACA 0020 appendage. A computer controlled transverse rig positioned a Freestone probe which was used to measure vorticity. A Scanivalve was used to acquire data at thirty-six pressure tappings at each station. Experiment runs were conducted under various conditions. All runs were with the body stationary, and the speed of flow maintained at 2.5 metres/second. The angle of yaw of the body was varied over a range from 0 degrees to 17.5 degrees both with and without an appendage. Appendage angles were varied from 0 degrees to 20 degrees whilst keeping the body at a constant yaw angle of zero degrees. Vorticity measurements were integrated to give circulation values for the vortices that were shed from the appendage and the body. Experiment results are compared with potential theory.

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Citation

Ward, B. and Wilson, P. A. (1992) Forces on a body of revolution in a vortex flow field Transactions of The Royal Institution of Naval Architects, Part B, 134, pp. 329-339. (doi:10.3940/rina.trans.1992.19).

More information

Published date: 1992
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 50975
URI: http://eprints.soton.ac.uk/id/eprint/50975
PURE UUID: 0cbf94f8-40e4-41bb-9efa-4a09617142ca
ORCID for P. A. Wilson: ORCID iD orcid.org/0000-0002-6939-682X

Catalogue record

Date deposited: 22 Apr 2008
Last modified: 17 Jul 2017 14:49

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