DOI: https://doi.org/10.14710/ijred.2022.38535

Numerical Analysis of Velocity Magnitude on Wave Energy Converter System in Perforated Breakwater

1Department of Civil Engineering, Faculty of Engineering, University of Bina Nusantara, Jakarta, Indonesia

2Department of Civil and Environmental Engineering, Gadjah Mada University, Yogyakarta, Indonesia

3Environmental Engineering Program, Murdoch University, Western Australia, Australia

Received: 4 Jun 2021; Revised: 18 Aug 2021; Accepted: 29 Aug 2021; Available online: 5 Sep 2021; Published: 1 Feb 2022.
Editor(s): H Hadiyanto
Open Access Copyright (c) 2022 The Authors. Published by Centre of Biomass and Renewable Energy (CBIORE)
Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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Abstract

Waves are an alternative energy source that can be used for electricity generation. Wave Energy Converter (WEC) system in perforated breakwater is potentially applicable WEC system for coastal area. The magnitude of wave energy generated is determined by the volume of sea water inside the perforated breakwater. This volumetric flow rate is calculated using the flow velocity at perforated holes on the structure slope. Therefore, this research aims to study the velocity magnitude by analyzing the interrelation among wave steepness, wave run-up and relative velocity. The method used consists of applying numeric 3D flow model in the perforated structure of the breakwater with the variation of wave height, wave period and structure slope. The result shows that, the steeper the structure, the bigger is the relative run up (Ru/H). The higher the relative run up, the higher are the relative run-up velocities (V/Vru). As the velocity increase, the volumetric flow rate inside perforated breakwater will be higher, which leads to higher wave energy. Hence, it can be concluded that the higher the velocities (V/Vru), the higher is the wave energy generated.

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Keywords: wave run-up; flow velocity; perforated structure; wave energy
Funding: Universitas Bina Nusantara under contract 017/VR.RTT/Ill/2021

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Section: Original Research Article
Language : EN
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