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An improved matching method to solve the diffraction—radiation problem of a ship moving in waves

Record type: Article

On the underlying assumption that the disturbance of the far-field velocity potential caused by the motion of a ship is small and may be linearized, an improved matching method is developed. Two arrays of fundamental singularities are placed inside the ship hull, which satisfy the linear free surface condition outside the truncated fluid domain and the far-field radiation condition. The choice of fundamental singularity depends on the problem under investigation (e.g.pulsating, translating or translating and pulsating source). The unknown strength of these singularities and the near-field velocity potential are determined in a coupled manner. It is shown from numerical examples that the present method provides a more efficient and accurate representation of waves in the far field than conventional matching methods.

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Citation

Du, S.X., Hudson, D.A., Price, W.G. and Temarel, P. (2004) An improved matching method to solve the diffraction—radiation problem of a ship moving in waves Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment, 218, (3), pp. 139-152. (doi:10.1243/1475090041737930).

More information

Published date: 2004
Keywords: matching methods, diffraction-radiation problem, far-field velocity potential, ship motion

Identifiers

Local EPrints ID: 22871
URI: http://eprints.soton.ac.uk/id/eprint/22871
ISSN: 1475-0902
PURE UUID: 489b6302-f1a4-41eb-99d7-4c7383cb4bd7
ORCID for D.A. Hudson: ORCID iD orcid.org/0000-0002-2012-6255
ORCID for P. Temarel: ORCID iD orcid.org/0000-0003-2921-1242

Catalogue record

Date deposited: 23 Mar 2006
Last modified: 17 Jul 2017 16:20

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