Forces on Vertical Cylinder Due to Random Waves
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 114, Issue 3
Abstract
Random wave forces consisting of drag and inertia components are analyzed. The forces were measured in a wave tank experiment with circular cylinders at low Keulegan‐Carpenter numbers. The values of the hydrodynamic coefficients were chosen from the corresponding tests in regular waves. The method used in choosing these values applicable to the case of random waves is discussed. The nonlinear drag force contribution is linearized so that the spectral approach may be applied directly. Good correlations between the measured force spectra and the computed spectra were obtained in several cases of random waves. The short‐term distribution of the in‐line and transverse forces is shown. It is found that the in‐line force amplitudes follow the Rayleigh distribution reasonably well. The relations of the transverse force to an exponential distribution are exhibited.
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 114 • Issue 3 • May 1988
Pages: 267 - 280
Copyright
Copyright © 1988 ASCE.
History
Published online: May 1, 1988
Published in print: May 1988
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