Active wave control by a pitching porous plate

Tsz Leung Yip, Allen T. Chwang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

The feasibility of using a pitching porous plate to actively control water waves is investigated on the basis of the linearized wave theory. The two-dimensional problem is formulated to deal with a fully submerged porous plate, pitching about its middle point and scattering an incident monochromatic wave. The pitching amplitude is assumed to be small, while the frequency of pitching is kept the same as that of the incident wave. The porous flow through the plate is governed by Darcy's law. The method of matched eigenfunction expansions is used to analyze the heights of reflected and transmitted waves. It is found that the heights of reflected and transmitted waves vary rapidly for small values of porous-effect parameter. A small value of porous-effect parameter is found to be optimal to dissipate incident wave energy.
Original languageEnglish
Title of host publicationProceedings of the International Offshore and Polar Engineering Conference
PublisherInt Soc of Offshore and Polar Engineerns (ISOPE)
Pages302-307
Number of pages6
Publication statusPublished - 1 Jan 1997
Externally publishedYes
EventProceedings of the 1997 7th International Offshore and Polar Engineering Conference. Part 3 (of 4) - Honolulu, HI, United States
Duration: 25 May 199730 May 1997

Conference

ConferenceProceedings of the 1997 7th International Offshore and Polar Engineering Conference. Part 3 (of 4)
CountryUnited States
CityHonolulu, HI
Period25/05/9730/05/97

ASJC Scopus subject areas

  • Ocean Engineering

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