WIT Press


Three-dimensional Solution For The Radiation And Diffraction Of A Submerged Spheroid Advancing In Ocean Waves

Price

Free (open access)

Paper DOI

10.2495/FSI030031

Volume

71

Pages

10

Published

2003

Size

410.41 kb

Author(s)

Y. Tiaple, U. Nontakaew, M. Guilbaud & M. Rahman

Abstract

Three-dimensional solution for the radiation and diffraction of a submerged spheroid advancing in ocean waves Y. ~ i a ~ l e ' , U. ~ontakaew', M. ~ u i l b a u d ~ & M. ah man^ I Dept. of Mechanical Engineering, KMITNB, Thailand. 2 CEAT-Universiti de Poitiers, France. 3 Dept. of Engineering Mathematics, Dalhousie University, Canada. Abstract We present a numerical scheme which deals with a three-dimensional solution for the radiation and diffraction of a submerged spheroid advancing in ocean waves. We assume that the fluid is inviscid and incompressible, and the fluid motion is irrotational. With these assumptions, there exists a velocity potential which satisfies Laplace's equation. The two boundary integral methods, mixed and source models, with the Green's diffraction-radiation function satisfying the Neumann-Kelvin linearized free-surface condition are used to compute the hydrodynamic forces acting on a spheroid. The wetted body surface is descretized into a number of small panels and in

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