Damping Effect on Waves Propagating Past a Submerged Horizontal Plate and a Vertical Porous Wall
Publication: Journal of Engineering Mechanics
Volume 131, Issue 4
Abstract
A set of analytical solutions for waves propagating past a combined submerged horizontal plate and vertical porous wall breakwater system is presented. The wave damping effect caused by the horizontal plate induced flow constriction is considered in the analysis. The velocity potentials in each fluid domain are derived based on the linear wave theory and the unknown coefficients are determined from the matching conditions using three sets of orthogonal eigenfunctions. Reflection and transmission coefficients are presented to evaluate the performance of the breakwater system. The analytical solutions in terms of the reflection and transmission coefficients as well as the hydrodynamic force on the vertical porous wall are found in good agreement with published laboratory measurements. In comparison with the solutions without taking into account the wave damping effect, the present analytical solutions significantly improve the accuracy of the wave predictions, especially for the reflected waves.
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Acknowledgment
The first writer would like to express his gratitude to the Wuhan University Key Laboratory of Water and Sediment Sciences, Ministry of Education, China, for providing financial support in the form of visiting scholar fellowship.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 131 • Issue 4 • April 2005
Pages: 427 - 437
Copyright
© 2005 ASCE.
History
Received: Apr 1, 2003
Accepted: Oct 19, 2004
Published online: Apr 1, 2005
Published in print: Apr 2005
Notes
Note. Associate Editor: Michelle H. Teng
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