Published in Ocean Engng. Vol. 29 (3), pp. 261-278, 2002
doi: 10.1016/S0029-8018(00)00073-1

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.

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Published on 09/03/19
Submitted on 01/03/19

DOI: 10.1016/S0029-8018(00)00073-1
Licence: CC BY-NC-SA license

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