Study on Porous Wave Makers
Publication: Journal of Engineering Mechanics
Volume 119, Issue 8
Abstract
A vertical porous wave maker sitting in an infinitely long channel of constant depth is studied. The wave maker performs horizontal oscillatory motion. A simplified analytical approach for thin porous wave maker and an approach of boundary integral method valid for a porous‐wave maker of any thickness are presented in this study. The fundamental assumption for an analytical approach of a thin porous wave maker is that the vertical velocity profiles are identical throughout the porous wave maker. The validity of the assumption for the thin porous‐wave‐maker approach is verified by the numerical solution of the boundary integral method. However, the numerical solution also shows very different results between thin and thick porous wave makers. The effect of inertial reactance on a porous medium compared with viscous resistance is also discussed in this study. When the flow‐efficiency parameter R defined in this study is greater than or equal to O(1), the inertial reactance can no longer be ignored as previous investigations did.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 119 • Issue 8 • August 1993
Pages: 1600 - 1614
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Jul 27, 1992
Published online: Aug 1, 1993
Published in print: Aug 1993
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