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All Journal Civil Engineering Forum Teknik Sipil Inersia : Jurnal Teknik Sipil dan Arsitektur MEDIA KOMUNIKASI TEKNIK SIPIL International Conference on Engineering and Technology Development (ICETD) Jurnal Teknik Pengairan: Journal of Water Resources Engineering Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Jurnal Sains & Teknologi Lingkungan Journal of Geoscience, Engineering, Environment, and Technology Journal of the Civil Engineering Forum Civil Engineering Journal Rang Teknik Journal Jurnal Penelitian Enjiniring Fakultas Teknik Unhas Spektrum Sipil Jurnal Teknologi Berkelanjutan Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Journal of the Civil Engineering Forum
Radianta Triadmadja
Department Of Civil And Environmental Engineering, Universitas Gadjah Mada, Yogyakarta, INDONESIA
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Materials Science & Nanotechnology Physics Transportation

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Journal : Civil Engineering Journal

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A Novel Exact Solution of Longshore Current and Its Application on Permeable Groin Umar, Hasdinar; Assidiq, Fuad M.; Triatmadja, Radianta; Baeda, Achmad Y.
Civil Engineering Journal Vol 11, No 2 (2025): February
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2025-011-02-07

Abstract

One major environmental problem exacerbated by longshore currents is beach erosion. Groins are a common defense tactic built perpendicular to the shore. However, conventional impermeable groins promote downstream erosion and disrupt sediment movement. Permeable groins provide a more environmentally friendly option, allowing some sediment to flow through. This study examines the effects of permeable groins on longshore currents. Permeable groins are not included in currently used longshore current equations. This study fills this gap by creating a new longshore current velocity equation considering permeable groins. The longshore current equation with the groin was developed based on the momentum equation in the longshore direction without the influence of lateral mixing and the assumption that base friction will rise due to the groin. Therefore, it was determined that the base shear stress after the groin was equal to the base shear stress plus the drag caused by the groin. The result shows that the longshore current equation through the groin is a function of the breaking wave parameter and the resistance parameter owing to the groin. Longshore current velocities with and without permeable groins of different densities were measured in wave basins. We collected information on groin characteristics, current velocities, and breaking wave heights. This investigation validates the shortcomings of the current equations. Doi: 10.28991/CEJ-2025-011-02-07 Full Text: PDF
Co-Authors . Nizam Achjat Dwiatno Adam Pamudji Rahardjo Al Amin, Muhammad Baitullah Anggita, Putra Any Nurhasanah Anzhari Syahmi Assidiq, Fuad M. Baeda, Achmad Y. Bambang Triatmodjo Benazir Benazir Budi Kamulyan Budi Kamulyan Budi Wignyosukarto Darmanto Darmanto David S. V. L Bangguna Djoko Legono Dyah Dhani M Dyah Dhani M. Ekha Yogafanny, Ekha Fatchan Nurrochmad Hasdinar Umar Iman Satyarno INTAN SUPRABA Intan Supraba, Intan Istiarto Istiarto Johan Syafri Mahathir A Joko Sujono Judi K. Nasjono Lenni Kartika Indah Mahathir A, Johan Syafri Marcio Tahalele Ningtyas, Nadya Nur Nizam Mr., Nizam Nizam Nizam Nur Yuwono Nur Yuwono Nur Yuwono Nur Yuwono Nur Yuwono Nurul Purnama Sari Oki Setyandito Oki Setyandito, Oki Parsada, Laksmana Angga Rada, Dwi Cahya Raelly Harza W Raelly Harza W. Ratnanik Ratnanik Rezky Andriady Sunjoto Sunjoto Sunjoto Sunjoto Warniyati Warniyati Warniyati Warniyati, Warniyati Yudhi Ardiansyah