RESEARCH PAPERS: Offshore Mechanics

Second-Order Diffraction Loads on Plural Vertical Cylinder With Arbitrary Cross Sections

[+] Author and Article Information
K. Masuda, W. Kato

Department of Oceanic Architecture and Engineering, College of Science and Technology, Nihon University, Chiba, Japan

H. Ishizuka

Nittetu Chemical Engineering Ltd., Tokyo, Japan

J. Offshore Mech. Arct. Eng 109(4), 314-319 (Nov 01, 1987) (6 pages) doi:10.1115/1.3257026 History: Received April 01, 1985; Revised November 03, 1986; Online October 30, 2009


The purpose of the present study is development of a powerful numerical method for calculating second-order diffraction loads on plural vertical cylinder with arbitrary cross sections. According to the present method, second-order wave force can be obtained from a linear radiation potential without solving second-order boundary value problem. The boundary value problem for the radiation potential is solved with the hybrid boundary element method. The computations for circular and rectangular cylinders were carried out and compared with the experiments. In addition, second-order wave forces on twin circular cylinder are calculated with the present method.

Copyright © 1987 by ASME
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