Research Article
Oct 1974
Peak Distribution of Random Wave-Current Force
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VIEW THE REPLYPublication: Journal of the Engineering Mechanics Division
Volume 100, Issue 5
Abstract
When waves encounter current, characteristics of waves, wave field kinematics, and fluid force undergo changes. Evaluation of fatigue damage of marine structures in random fluid field requires knowledge of peak distribution of fluid force. This paper examines the influence of wave-current interactions on peak distribution of fluid force on an element of a cylinder in a random, Gaussian, zero mean, stationary deep-water gravity wave field under the influence of a steady current. The influence of Gaussian assumption of fluid force on its peak distribution is also studied. Results are obtained and presented graphically for a 40 mph wind for current speeds U = O (no current), U = 3 fps (concurring current), and U = –3 fps (adverse current). When current is present, comparisons are made between the cases when wave-current interactions are considered and ignored. It is shown that interactions have pronounced effects on the peak distribution of fluid force especially in adverse current. Furthermore, Gaussian assumption of fluid force is decisively unsatisfactory.
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Published In
Journal of the Engineering Mechanics Division
Volume 100 • Issue 5 • October 1974
Pages: 873 - 884
Copyright
© 1974 American Society of Civil Engineers.
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Published in print: Oct 1974
Published online: Feb 3, 2021
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Authors
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Chi C. Tung, AM.ASCE
Assoc. Prof. of Civ. Engrg., North Carolina State Univ., Raleigh, N.C.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.