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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan REKAYASA Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) Sewagati Journal of Public Health and Pharmacy
Muhammad Zikra
Teknik Kelautan, Institut Teknologi Sepuluh November Surabaya
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Numerical Simulation of Wave Run-Up on Coastal Structure with Hexaloc Armour Units based on the SPH Method Ghazali Hafiz, Muhammad Brilliant Danu; Armono, Haryo Dwito; Zikra, Muhammad
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 23, No 1 (2026): Article in Press
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v23i1.78197

Abstract

Coastal abrasion and erosion pose a threat to shoreline stability in Indonesia, necessitating the implementation of reliable coastal protection structures, such as breakwaters. Accurate prediction of wave run-up is essential, as crest elevation is crucial, as it directly determines structural safety and the level of protection provided. This study aims to analyse wave run-up on rubble-mound breakwaters with Hexaloc armour units using the Smoothed Particle Hydrodynamics (SPH) method in DualSPHysics, to improve the accuracy and efficiency of design. The numerical model was developed using AutoCAD, SketchUp and simulated under varying wave heights (0.05 – 0.13 m), periods (1.1 – 1.5 s), and one versus two layer armour configurations. Validation was carried out by comparing simulation results with analytical and empirical formulations, particularly Ahrens’ equation. The results indicate that relative run-up ( ) increases with the Iribarren number but tends to stabilize at higher values. Numerical simulations produced run-up ratios ranging from 0.56 – 1.66 for a single layer and 0.63 – 0.86 for a double layer, while theoretical predictions yielded higher values of 1.59 – 2.39. The comparison demonstrates that single-layer Hexaloc arrangements produced slightly higher run-up than double layers, due to increased permeability. A strong correlation was obtained between SPH results and Ahrens’s theory, with a coefficient of determination of  for a single layer,  for a double layer, confirming that both approaches yield consistent outcomes.
Co-Authors Aji Satria, Muhammad Arwan Arwan Ashfar, Putika Dewi Satria Ahmar Dwito Armono, Haryo Fahmi, Muhammad Baharudin Farisi, Muhammad Al- Firmansyah Firmansyah Frestiqauli, Santi Ghazali Hafiz, Muhammad Brilliant Danu Handayanu Handayanu Haryo Dwito Armono Hashimoto, Noriaki Hashimoto, Noriaki Herman Pratikno, Herman Ikhwani, Hasan Jamaludin M Sakung Kriyo Sambodho Lorentius, Suratno Mitsuyasu, Kodama Muhammad Sabri Syahrir Mukhtasor Mukhtasor Naturezza, Defian Plant, Nathaniel G. Pratikto, Agoes Sadli Syam Shade Rahmawati Sitti Rahmawati Sri Hastuti Virgianti Pulukadang Suzuki, Kojiro Suzuki, Kojiro Wirayuhanto, Harish Wisnu Wardhana Yamashiro, Masaru Yamashiro, Masaru