An analysis of perforated plate breakwaters

Alireza Valizadeh, Ashkan Rafiee, Vivek Francis, Murray Rudman, Balaji Ramakrishnan

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

6 Citations (Scopus)

Abstract

The interaction of a solitary wave with a vertical perforated plate is investigated in this study with particular attention given to the degree of wave reflection, transmission and energy dissipation. In order to understand the physics of the problem, two different numerical models along with sets of experimental data are used. The numerical models differ in capturing the influence of the plate porosity on the flow. In the first, the OpenFOAM package is used to model all details of flow through a small section of perforated plate, providing some confidence in the simulation results due to the high resolution of the simulation. However, such a model is impractical. Hence, in the second approach the interaction was captured by means of a Smoothed Particle Hydrodynamics (SPH) model in which a pressure drop was applied across a narrow (but finite) region of the domain corresponding to the perforated plate. The results of both methods are then compared and verified against experimental data and a proper relationship between the incident wave characteristics, porosity and reflection/transmission coefficients of the perforated plate is presented.

Original languageEnglish
Title of host publicationProceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018
PublisherInternational Society of Offshore and Polar Engineers
Pages1174-1180
Number of pages7
Volume2018-June
ISBN (Print)9781880653876
Publication statusPublished - 1 Jan 2018
EventInternational Ocean and Polar Engineering Conference 2018 - Sapporo, Japan
Duration: 10 Jun 201815 Jun 2018
Conference number: 28th

Conference

ConferenceInternational Ocean and Polar Engineering Conference 2018
Abbreviated title ISOPE 2018
Country/TerritoryJapan
CitySapporo
Period10/06/1815/06/18

Keywords

  • Breakwater
  • CFD
  • OpenFOAM
  • Perforated plate
  • Pressure drop
  • SPH

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