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Titolo:
Applied hydrodynamic wave-resistance computation by Fourier transform
Autore:
DElia, J; Storti, MA; Idelsohn, SR;
Indirizzi:
Consejo Nacl Invest Cient & Tecn, UNL, INTEC, CIMEC, RA-3000 Santa Fe, Argentina Consejo Nacl Invest Cient & Tecn Santa Fe Argentina RA-3000 e, Argentina
Titolo Testata:
OCEAN ENGINEERING
fascicolo: 3, volume: 29, anno: 2002,
pagine: 261 - 278
SICI:
0029-8018(200203)29:3<261:AHWCBF>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
ABSORBING BOUNDARY-CONDITION;
Keywords:
free surface flows; hydrodynamics; fluid dynamics; computational techniques; mathematical methods in physics;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: D'Elia, J Consejo Nacl Invest Cient & Tecn, UNL, INTEC, CIMEC, Guemes 3450, RA-3000 Santa Fe, Argentina Consejo Nacl Invest Cient & Tecn Guemes 3450 Santa Fe Argentina RA-3000
Citazione:
J. D'Elia et al., "Applied hydrodynamic wave-resistance computation by Fourier transform", OCEAN ENG, 29(3), 2002, pp. 261-278

Abstract

An applied Fourier transform computation for the hydrodynamic wave-resistance coefficient is shown, oriented to potential flows with a free surface and infinity depth. The presence of a ship-like body is simulated by its equivalent pressure disturbance imposed on the un-perturbed free surface, where a linearized free surface condition is used. The wave-resistance coefficient is obtained from the wave-height downstream. Two examples with closed solutions are considered: a submerged dipole, as a test-case, and a parabolic pressure distribution of compact support. In the three dimensional case, a dispersion relation is included which is a key resource for an inexpensive computation of the wave pattern far downstream like fifteen ship-lengths. (C) 2001 Elsevier Science Ltd. All rights reserved.

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Documento generato il 01/04/20 alle ore 20:55:04