Flap gate farm: From Venice lagoon defense to resonating wave energy production. Part 1: Natural modes

P. Sammarco*, S. Michele, M. d'Errico

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

We consider a flap-gate farm, i.e. a series of P arrays, each made by Q neighboring flap gates, in an infinitely long channel. We show that there are P × (Q − 1) natural modes and determine their eigenfrequencies and modal forms. When the distance between the arrays goes to infinity the eigenfrequencies converge to the Q − 1 values given by Li and Mei [14]. For an ad-hoc combination of channel geometry and flap gate characteristics, modal excitation can give significantly larger response than for the case of a single or a sparse gate system. This aspect is relevant for the design of an optimal gate farm wave energy converter
Original languageEnglish
Pages (from-to)206-213
Number of pages8
JournalApplied Ocean Research
Volume43
DOIs
Publication statusPublished - Oct 2013

Bibliographical note

Acknowledgements
The authors wish to thank Giorgio Bellotti and Ali Abdolali of Universita` degli Studi Roma Tre for fruitful discussions.

Keywords

  • Eigenmodes
  • Flap gate energy
  • Wave-body interaction

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