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RESEARCH PAPERS: Offshore Mechanics

Wave Diffraction Theory—Some Developments in Linear and Nonlinear Theory

[+] Author and Article Information
R. Eatock Taylor

Department of Engineering Science, University of Oxford, Oxford, UK

F. P. Chau

Department of Naval Architecture and Offshore Engineering, University of California, Berkeley, CA 94720

J. Offshore Mech. Arct. Eng 114(3), 185-194 (Aug 01, 1992) (10 pages) doi:10.1115/1.2919970 History: Received August 22, 1991; Revised February 21, 1992; Online June 12, 2008

Abstract

The paper discusses recent developments aimed at improving the efficiency by which converged first and second-order results may be obtained. A higher-order element discretization of a novel integral equation is described. It is shown that this is capable of providing highly accurate first-order results based on a relatively small number of elements. Results are also given for the nonlinear diffraction problem, including comparisons with an analytical solution for a vertical cylinder. Practical use of these developments is illustrated by results for the second-order free surface profile in the vicinity of a tension leg platform.

Copyright © 1992 by The American Society of Mechanical Engineers
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