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Wave Reflection in Oscillating Water Column (OWC) Type Breakwater

Refleksi Gelombang Pada Pemecah Gelombang Tipe OWC (Oscillating Water Column)

Zona Laut Jurnal Inovasi Sains Dan Teknologi Kelautan · Vol. ume No. vember (2023) · pp. 344–352

DOI
10.62012/zl.v4i3.31730
ISSN
2721-5717, 2747-2124
Published
2023-11-13
Publisher
Departemen Teknik Kelautan Universitas Hasanuddin
Language
id
License
creativecommons.org/licenses/by/4.0

Abstract

English

Breakwater functions as a coastal protection structure, it is important to design a breakwater model that is able to perform a dual function as a wave energy catcher. To gain a deeper understanding of the wave reflection influenced by the slope and inlet hole on the OWC type breakwater model, a more comprehensive study is needed. This study aims to determine the reflection of waves in front of the OWC type breakwater model with variations in slope angle and variations in inlet openings. The research method is experimental. The study used an OWC type wave absorber model with two variations of tilt angle (q) 450 and 600, variation of stroke with flap movement of 4, 5, and 6, variation of water depth (d) 17.5 cm, 21 cm, and 24.5 cm and variation of openings (closed inlet, open inlet 5 cm, 10 cm, and 15 cm). The results showed that the effect of the inlet opening (h) on the Kr value is quite significant, indicated by the reflected waves being large. The Kr value is greater with increasing inlet openings, due to the relatively small damped waves and the pressure that occurs from inside the inlet hole is greater, the Kr value is large in the OWC type breakwater model.

Bahasa Indonesia

Breakwater berfungsi sebagai struktur pelindung pantai, penting suatu inovasi untuk merancang model breakwater yang mampu menjalankan fungsi ganda sebagai penangkap energi gelombang. Untuk mendapatkan pemahaman yang lebih mendalam tentang refleksi gelombang yang dipengaruhi oleh kemiringan slope dan lubang inlet pada model breakwater tipe OWC, diperlukan kajian yang lebih komprehensif. Penelitian ini bertujuan untuk mengetahui refleksi gelombang di depan model breakwater tipe OWC dengan variasi sudut kemiringan dan variasi bukaan inlet. Metode penelitian adalah eksperimental. Penelitian menggunakan model peredam gelombang tipe OWC dengan variasi dua sudut kemiringan (q) 450 dan 600, variasi stroke dengan gerakan flap yaitu 4, 5, dan 6, variasi kedalaman air (d) 17,5 cm, 21 cm, dan 24,5 cm dan variasi bukaan (inlet tertutup, inlet terbuka 5 cm, 10 cm, dan 15 cm). Hasil penelitian menunjukkan pengaruh bukaan inlet (h) terhadap nilai Kr berpengaruh cukup signifikan, ditunjukkan dari gelombang yang direfleksikan menjadi besar. Nilai Kr lebih besar dengan bertambahnya bukaan inlet, disebabkan gelombang yang teredam relatif kecil dan tekanan yang terjadi dari dalam lubang inlet lebih besar maka nilai Kr besar pada model breakwater tipe OWC.

Keywords

Collaboration network of the authors

40 authors · 107 co-authorship links · 3 across different organisations · showing the 40 most connected

Hover or tap a name to highlight its co-authors. Double-click to open the author's page.

  • Universitas Halu Oleo
  • Universitas Nahdlatul Ulama Blitar
  • Hasanuddin University
  • Universitas Balikpapan
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Taufiqur RachmanAffiliation unknown21
Sabaruddin RahmanAffiliation unknown8
Ashury AshuryAffiliation unknown6
Hasdinar UmarAffiliation unknown5
Achmad Yasir BaedaAffiliation unknown3
Nur AzisahAffiliation unknown3
Ahmad Syarif SukriUniversitas Halu Oleo2
Darwin DarwinAffiliation unknown2
Tri UtariAffiliation unknown2
Ahmad Azwar Mas'ud MAffiliation unknown2
Muhammad AsdarAffiliation unknown2
Putri Sriwahyuni KasbaAffiliation unknown2
ZULFIKAR ZULFIKARUniversitas Halu Oleo2
Mu’minatung NisaAffiliation unknown2
Fuad Mahfud AssidiqAffiliation unknown2
Dwi AgusdiansyahAffiliation unknown2
Rahayu Sri WaskitoningtyasUniversitas Balikpapan1
Taufiqurrahman TaufiqurrahmanAffiliation unknown1
Ilham AlkhaerAffiliation unknown1
Teguh Pairunan PutraAffiliation unknown1
Adriani PhadyAffiliation unknown1
Arsil ArsilAffiliation unknown1
Muhammad AksarAffiliation unknown1
Muhammad Arsyad ThahaAffiliation unknown1
Wasir SamadAffiliation unknown1
A.Subhan MustariAffiliation unknown1
Mukhsan P.HattaAffiliation unknown1
Silman PongmandaAffiliation unknown1
Ariningsih SupraptiAffiliation unknown1
St.Nur RahmahAffiliation unknown1
Muhammad Rifaldi MustaminAffiliation unknown1
Yuliani SulemanAffiliation unknown1
Reskiyanti ReskiyantiAffiliation unknown1
Alif Hidayat KasimAffiliation unknown1
Wahyuni HasanAffiliation unknown1
Wahyu Sakinah KasimAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unhas.ac.id/index.php/zonalaut/oai, first harvested 2 Nov 2026, last seen 2 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en">Wave Reflection in Oscillating Water Column (OWC) Type Breakwater</dc:title>
	<dc:title xml:lang="id">Refleksi Gelombang Pada Pemecah Gelombang Tipe OWC (Oscillating Water Column)</dc:title>
	<dc:creator xml:lang="en">Sugianto, Sugianto</dc:creator>
	<dc:creator xml:lang="en">Lopa, Rita Tahir</dc:creator>
	<dc:creator xml:lang="en">Karamma, Riswal</dc:creator>
	<dc:creator xml:lang="en">Paotonan, Chairul</dc:creator>
	<dc:creator xml:lang="id">Sugianto, Sugianto</dc:creator>
	<dc:creator xml:lang="id">Lopa, Rita Tahir</dc:creator>
	<dc:creator xml:lang="id">Karamma, Riswal</dc:creator>
	<dc:creator xml:lang="id">Paotonan, Chairul</dc:creator>
	<dc:subject xml:lang="id">Breakwater</dc:subject>
	<dc:subject xml:lang="id">Oscillating water column</dc:subject>
	<dc:subject xml:lang="id">Wave reflection</dc:subject>
	<dc:subject xml:lang="id">Hi tinggi gelombang datang</dc:subject>
	<dc:subject xml:lang="id">Hi/L kecuraman gelombang</dc:subject>
	<dc:subject xml:lang="id">L panjang gelombang</dc:subject>
	<dc:subject xml:lang="id">Hmax tinggi gelombang maksimum</dc:subject>
	<dc:subject xml:lang="id">Hmin tinggi gelombang minimum</dc:subject>
	<dc:subject xml:lang="id">Kr koefesien refleksi</dc:subject>
	<dc:subject xml:lang="id">d kedalaman air</dc:subject>
	<dc:subject xml:lang="id">h bukaan inlet</dc:subject>
	<dc:description xml:lang="en">Breakwater functions as a coastal protection structure, it is important to design a breakwater model that is able to perform a dual function as a wave energy catcher. To gain a deeper understanding of the wave reflection influenced by the slope and inlet hole on the OWC type breakwater model, a more comprehensive study is needed. This study aims to determine the reflection of waves in front of the OWC type breakwater model with variations in slope angle and variations in inlet openings. The research method is experimental. The study used an OWC type wave absorber model with two variations of tilt angle (q) 450 and 600, variation of stroke with flap movement of 4, 5, and 6, variation of water depth (d) 17.5 cm, 21 cm, and 24.5 cm and variation of openings (closed inlet, open inlet 5 cm, 10 cm, and 15 cm). The results showed that the effect of the inlet opening (h) on the Kr value is quite significant, indicated by the reflected waves being large. The Kr value is greater with increasing inlet openings, due to the relatively small damped waves and the pressure that occurs from inside the inlet hole is greater, the Kr value is large in the OWC type breakwater model.</dc:description>
	<dc:description xml:lang="id">Breakwater berfungsi sebagai struktur pelindung pantai, penting suatu inovasi untuk merancang model breakwater yang mampu menjalankan fungsi ganda sebagai penangkap energi gelombang. Untuk mendapatkan pemahaman yang lebih mendalam tentang refleksi gelombang yang dipengaruhi oleh kemiringan slope dan lubang inlet pada model breakwater tipe OWC, diperlukan kajian yang lebih komprehensif. Penelitian ini bertujuan untuk mengetahui refleksi gelombang di depan model breakwater tipe OWC dengan variasi sudut kemiringan dan variasi bukaan inlet. Metode penelitian adalah eksperimental. Penelitian menggunakan model peredam gelombang tipe OWC dengan variasi dua sudut kemiringan (q) 450 dan 600, variasi stroke dengan gerakan flap yaitu 4, 5, dan 6, variasi kedalaman air (d) 17,5 cm, 21 cm, dan 24,5 cm dan variasi bukaan (inlet tertutup, inlet terbuka 5 cm, 10 cm, dan 15 cm). Hasil penelitian menunjukkan pengaruh bukaan inlet (h) terhadap nilai Kr berpengaruh cukup signifikan, ditunjukkan dari gelombang yang direfleksikan menjadi besar. Nilai Kr lebih besar dengan bertambahnya bukaan inlet, disebabkan gelombang yang teredam relatif kecil dan tekanan yang terjadi dari dalam lubang inlet lebih besar maka nilai Kr besar pada model breakwater tipe OWC.</dc:description>
	<dc:publisher xml:lang="en">Departemen Teknik Kelautan Universitas Hasanuddin</dc:publisher>
	<dc:date>2023-11-13</dc:date>
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	<dc:identifier>https://journal.unhas.ac.id/index.php/zonalaut/article/view/31730</dc:identifier>
	<dc:identifier>10.62012/zl.v4i3.31730</dc:identifier>
	<dc:source xml:lang="en">Zona Laut Jurnal Inovasi Sains Dan Teknologi Kelautan; Volume 4, Number 3, November 2023 Edition; 344-352</dc:source>
	<dc:source xml:lang="id">Zona Laut : Jurnal Inovasi Sains Dan Teknologi  Kelautan; Volume 4, Nomor 3, Edisi November 2023; 344-352</dc:source>
	<dc:source>2721-5717</dc:source>
	<dc:source>2747-2124</dc:source>
	<dc:language>id</dc:language>
	<dc:relation>https://journal.unhas.ac.id/index.php/zonalaut/article/view/31730/10556</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2023 Sugianto Sugianto, Rita Tahir Lopa, Riswal Karamma, Chairul Paotonan</dc:rights>
	<dc:rights xml:lang="en">https://creativecommons.org/licenses/by/4.0</dc:rights>
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