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dc.contributor.authorArunakumar, H.S.
dc.contributor.authorSuvarna, P.S.
dc.contributor.authorBanagani, V.K.Y.
dc.contributor.authorUmesh, Pruthviraj
dc.contributor.authorShirlal, K.G.
dc.date.accessioned2024-03-31
dc.date.accessioned2024-09-13T06:18:57Z
dc.date.available2024-02-25
dc.date.available2024-09-13T06:18:57Z
dc.date.issued2024
dc.identifier.citationOcean Engineering, vol.298; 2024; Article no: 117251
dc.identifier.issn0029-8018
dc.identifier.otherhttps://www.sciencedirect.com/science/article/abs/pii/S0029801824005882
dc.identifier.urihttps://doi.org/10.1016/J.OCEANENG.2024.117251
dc.identifier.urihttp://drs.nio.res.in/drs/handle/2264/9244
dc.descriptionIF(JCR2023) = 5
dc.description.abstractThe study provides a comprehensive examination of single row Rectangular Pile Head Breakwaters (RPHB), encompassing both non-perforated and perforated variations. In the non-perforated RPHB category, the investigation delves into the effects of pile head height and width, and wave climate. For perforated RPHB structures, the study analyses the influence of percentage of perforations, perforation size, and depth of water. Further, the research includes a comparative assessment between non-perforated and perforated RPHB structures. Additionally, the research conducts a comparative analysis with similar structures. In the case of non-perforated RPHB, the configuration with relative pile head diameter (D/d) of 2.4 and relative pile head height (Y/Hmax) of 1.5 stood out as the most effective model. Similarly, the perforated RPHB demonstrated its maximum wave attenuation potential with percentage of perforations (P) of 24% with relative size of perforations (S/D) of 0.25. This optimal configuration achieved a minimal wave transmission coefficient (Kt) of 0.53, reflection coefficient (Kr) of 0.33, and energy dissipation coefficient (Kd) of 0.79 at a relative water depth (h/H) 0.865. Notably, the introduction of perforations on the RPHB structure led to an improvement in wave attenuation performance by 4-8%, resulting in lower reflection and higher energy dissipation. Comparatively, the RPHB structure outperformed the Enlarged (cylindrical) Pile Head Breakwater (EPHB) and Conical Pile Head Breakwater (CPHB) structures in terms of wave attenuation, exhibiting higher reflection and superior energy dissipation characteristics. The consistent outcome of these investigations reveals that the RPHB exhibits superior hydrodynamic performance characteristics and design suitability, making it a promising choice for breakwater applications.
dc.languageen
dc.publisherPergamon
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleInvestigating the wave attenuation capabilities of rectangular pile head breakwater: A physical modelling approach
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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