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RESEARCH PAPERS: Offshore Mechanics

Nonlinear Wave Forces Acting on Submerged Horizontal Cylinders

[+] Author and Article Information
R. Inoue

Hiratsuka Research Laboratory, Sumitomo Heavy Industries, Ltd., Kanagawa, Japan

Y. Kyozuka

Research Institute for Applied Mechanics, Kyushu University, Fukuoka, Japan

J. Offshore Mech. Arct. Eng 110(1), 62-70 (Feb 01, 1988) (9 pages) doi:10.1115/1.3257125 History: Received March 23, 1985; Revised October 24, 1986; Online October 30, 2009

Abstract

This paper is to present experimental results of the first and second-order wave forces acting on three kinds of horizontally submerged cylinders. Wave height, wave frequency and the models’ submergence were varied in the experiments. These results are compared with the numerical calculations based on the regular perturbation theory. Through this study, it was found that the calculations of both the first and second-order wave forces coincide with the experiments when the cylinders are submerged at a sufficient depth. However, in the case that the cylinders are close to the free surface and/or wave amplitudes are relatively large, the experimental results become small compared with the calculations because of nonlinear effects, such as wave breaking observed in the experiments.

Copyright © 1988 by ASME
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