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Interfacial waves produced by a submerged body moving in a layered fluid

Price, W.G. and Westlake, P.C. (1993) Interfacial waves produced by a submerged body moving in a layered fluid , Southampton, UK University of Southampton 78pp. (Ship Science Reports, 62).

Record type: Monograph (Project Report)

Abstract

Velocity potential solutions are derived for an arbitrary shaped body moving horizontally in a fluid system consisting of three layers, the lower layer of infinite depth. The body may be located in any one of the three layers. The boundary conditions on the free surface and interface are linearised and a radiation condition imposed. Expressions for the far field free surface and interface elevations are derived. A three dimensional extension of Lagally's theory provides a method which allows the wave resistance of the body to be determined. The application of a slender body approximation permits the derivation of analytical expressions for the elevations and wave resistance. Plots of the far field free surface and interface wave systems are presented when the body is located in each layer. The wave resistance of a prolate spheroid length L to diameter d for a series of L/d ratios is calculated over a Froude number range. The "dead water" effect being apparent in every case. The results of other parametric studies are also included.

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More information

Published date: 1993
Additional Information: ISSN 0140-3818

Identifiers

Local EPrints ID: 46424
URI: http://eprints.soton.ac.uk/id/eprint/46424
PURE UUID: 6aaa2ec4-140a-4a54-a2d3-7059f1cdfe48

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Date deposited: 28 Jun 2007
Last modified: 17 Jul 2017 15:07

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Contributors

Author: W.G. Price
Author: P.C. Westlake

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