Development of Oscillating Water Column Breakwater Model

. Sugianto; Rita Tahir Lopa; Riswal Karamma; Chairul Paotonan

doi:10.28991/CEJ-2025-011-04-02

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. Sugianto
sugianto20d@student.unhas.ac.id
Department of Civil Engineering, Hasanuddin University, South Sulawesi 91711,, Indonesia
Rita Tahir Lopa Department of Civil Engineering, Hasanuddin University, South Sulawesi 91711,, Indonesia
Riswal Karamma Department of Civil Engineering, Hasanuddin University, South Sulawesi 91711,, Indonesia
Chairul Paotonan Department of Ocean Engineering, Hasanuddin University, South Sulawesi 91711,, Indonesia

Vol. 11 No. 4 (2025): April

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Integrating coastal protection functions and wave energy conversion makes the OWC breakwater an environmentally friendly and material-efficient innovation compared to conventional breakwaters. This research aims to determine the wave runup height on the Sloped side of the OWC breakwater model and its internal pressure. Utilizing theoretical approaches, a 1:20 scale laboratory model, dimensional analysis, and parameter relationships, the study investigates the effects of wave interaction, model geometry, and water depth. The analysis reveals a positive correlation between the combined parameter value (ð”œ“) and relative pressure (P/Ïgh_s), highlighting the consistent influence of these parameters on pressure behavior. Results show that a lower slope angle increases pressure, while variations in inlet opening sizes (h_s) significantly affect wave runup (R_u/H_i) and run-down (R_d/H_i). Larger inlet openings generally reduce the wave runup effect, though the magnitude of this impact depends on the slope angle. The optimal configuration for the OWC breakwater model is identified as an inlet opening size between 5 cm with a slope angle of 45° to 60°, providing relatively higher pressure while maintaining stability. This combination improves the system's efficiency in absorbing and using wave energy.

Doi: 10.28991/CEJ-2025-011-04-02

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Publication Start Year:	2015
JCR 2023 Impact Factor (IF):	4.3
JIF QUARTILE:	Q1
SJR 2023 Quartile:	Q1
Acceptance Rate:	27%
Review Speed (Average):	76 days
Issue Per Year:	12
Number of Volumes:	10
Number of Issues:	107
Number of Articles:	1552
Number of Reviewers:	3417
Number of Contributors:	3604
Contributing Countries:	86
No. of WoS Citations:	7986
WoS h-index:	34
Scopus CiteScore:	7.0
No. of Google Citations:	17324
Google h-index:	47
Google i10-index:	393
Abstract Views:	5,819,908
PDF Download:	3,790,637

Development of Oscillating Water Column Breakwater Model

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