Research Article
Feb 1975
Wave Induced Pressures on Submerged Plates
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VIEW THE REPLYAuthors: William W. Durgin and Jong C. ShiauAuthor Affiliations
Publication: Journal of the Waterways, Harbors and Coastal Engineering Division
Volume 101, Issue 1
Abstract
In the analysis, the plate is imagined to be rigidly suspended at an arbitrary fixed depth and then replaced by a vortex sheet the strength of which varies both temporarily and spatially. The velocity potential of this sheet is adjusted such that, when combined with the potential of the oncoming waves, boundary conditions on the plate, the free surface, and the bottom are approximately satisfied. The final vortex strength distribution can be determined allowing the velocity field and thus the pressure distribution on each side of the plate to be calculated. The experimental program was conducted using a 4x4x40ft (1.2x1.2x12-m) flume with a generator capable of producing waves having a broad frequency and amplitude spectrum in varying water depths. A flat plate of sandwich type construction was instrumented with small pressure transducers with outputs that were processed and recorded on an oscillographic recorder. Results are presented as instantaneous differential pressure distributions for associated wave positions, sequentially as the wave progresses. An advantage of the analytic approach is that pressure distributions as well as total forces may be readily obtained.
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Published In
Journal of the Waterways, Harbors and Coastal Engineering Division
Volume 101 • Issue 1 • February 1975
Pages: 59 - 71
Copyright
© 1975 American Society of Civil Engineers.
History
Published in print: Feb 1975
Published online: Feb 12, 2021
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Authors
Affiliations
William W. Durgin
Asst. Prof. of Mech. Engrg. and Sr. Research Engr., Alden Research Labs., Worcester Polytechnic Inst., Worcester, Mass.
Jong C. Shiau
Research Engr., Alden Research Labs., Worcester Polytechnic Inst., Worcester, Mass.
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