Research Article
May 1979
Diffraction of Water Waves by Isolated Structures
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VIEW THE REPLYPublication: Journal of the Waterway, Port, Coastal and Ocean Division
Volume 105, Issue 2
Abstract
A diffraction theory based upon the method of Green functions is presented and compared to existing exact solutions and an approximate one. The solution is obtained by approximating an integral equation for the wave potential by a set of linear equations. Wave-height distributions have been analyzed in order to determine the affect of structure geometry upon the diffraction process. The wave-height topography in the wave-lee of four separate, geometrically-different cylinders (of the same size) has been calculated and compared to laboratory measurements. The distance is established beyond which the wave-height topography is independent of the geometrical features of the wave-diffracting obstacle. Laboratory measurements were performed in the wave-lee region from 1/2 to 20 wavelengths from the structure. At large distances from the structure experimental wave heights are significantly greater than indicated by theory.
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Published In
Journal of the Waterway, Port, Coastal and Ocean Division
Volume 105 • Issue 2 • May 1979
Pages: 131 - 147
Copyright
© 1979 American Society of Civil Engineers.
History
Published in print: May 1979
Published online: Feb 12, 2021
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Authors
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Volker W. Harms, M.ASCE
Asst. Prof. of Civ. Engrg., State Univ. of New York, Buffalo, N.Y.
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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.