Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Computational Fluid Dynamics Analysis of Wave Run-Up on Monopod and Pentapod Armor Units at Giant Sea Wall Jakarta

  • Dantje Kardana Natakusumah (Faculty of Civil and Environmental Engineering, Bandung Institute of Technology) ;
  • Ahmad Fadlun Harianto Martino (Faculty of Civil and Environmental Engineering, Bandung Institute of Technology) ;
  • Hendra Achiari (Ocean Engineering, Faculty of Civil and Environmental Engineering, Bandung Institute of Technology) ;
  • Joko Nugroho (Water Resources Engineering, Faculty of Civil and Environmental Engineering, Bandung Institute of Technology) ;
  • Mohammad Farid (Water Resources Engineering, Faculty of Civil and Environmental Engineering, Bandung Institute of Technology) ;
  • Fitra Adinata (PT. Sapta Adhi Pratama Engineering Consultant)
  • Received : 2025.09.15
  • Accepted : 2025.11.03
  • Published : 2025.12.31
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Abstract

This study addressed a deficiency in previous studies on pentapod armor units. Those studies focused only on stability (KD) and did not involve run-up analysis, which is a critical factor for the planned Giant Sea Wall in North Jakarta. The wall is essential to protect the Indonesian coast from the inundation caused by land subsidence and sea-level increase. Using computational fluid dynamics (CFD) simulations with Flow 3D-Hydro software, researchers compared the effectiveness of the existing pentapod and a new monopod unit in dissipating wave energy and reducing run-up. Eight tests were conducted for each armor type. The run-up ratios (Ru / H) for the monopod units were 0.982 for Mono-Octa, 0.849 for Mono-Cone, and 0.867 for Mono-Cube A. For the pentapod units, the ratios were 0.793 for Penta-Octa, 0.742 for Penta-Cone, and 0.759 for Penta-Cube. The cone shape was observed to be the most effective at dampening energy and reducing run-up for both types of armor. Further testing on a modified Mono-Cube B with perforated legs yielded a lower Ru / H value of 0.726. This was an improvement over the value (0.867) for Mono-Cube (Type A). The study verified that less energy dissipation results in a higher run-up, with wave parameters such as period (Tn), length (Ln), and height (Hn) influencing this relationship.

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References

  1. Al Shaikhli, H. I., & Khassaf, S. I. (2021). Using of flow 3d as CFD materials approach in waves generation. Materials Today: Preceedings, 49(Part 7), 2907-2911. https://doi.org/10.1016/j.matpr.2021.10.282
  2. Choi, J., Ko, K. O., & Yoon, S. B. (2009). 3D numerical simulation for equivalent resistance coefficient for flooded built-up areas. In Asian and Pacific Coasts 2009 (pp. 245-251). https://doi.org/10.1142/9789814287951_0169
  3. Coastal Engineering Research Center. (1984). Shore Protection Manual. Department of the Army, Waterways Experiment Station, Corps of Engineers, Coastal Engineering Research Center.
  4. den Bieman, J. P., van Gent, M. R. A., & van den Boogaard, H. F. P. (2021). Wave overtopping predictions using an advanced machine learning technique. Coastal Engineering, 166, 103830. https://doi.org/10.1016/j.coastaleng.2020.103830
  5. Dong, Y., Tan, W., Chen, H., & Yuan, J. (2024). Numerical modelling of wave interaction with a porous floating structure consisting of uniform spheres. Physics of Fluids, 36, 087133. https://doi.org/10.1063/5.0222161
  6. Kamphuis, J. W. (2000). Introduction to coastal engineering and management (Vol. 16). World Scientific Publishing.
  7. Khotimah, M. K. (2012). Validation of significant wave height of windwave-5 wave model using multimission satellite altimeter data. University Indonesia.
  8. Kim, B. J., Hwang, J. H., & Kim, B. (2022). FLOW-3D model development for the analysis of the flow characteristics of downstream hydraulic structures. Sustainability, 14(17), 10493. https://doi.org/10.3390/su141710493
  9. Melito, I., & Melby, J. A. (2002). Wave runup, transmission, and ref lection for structures armored with CORE-LOC®. Coastal Engineering, 45(1), 333-32. https://doi.org/10.1016/S0378-3839(01)00044-8
  10. Muttray, M., & Reedijk, J. (2008). Design of Concrete Armour Layers. Hansa International Maritime Journal, 6, 111-118. https://www.researchgate.net/publication/275960407
  11. Najafi-Jilani, A., Zakiri Niri, M., & Naderi, N. (2014). Simulating three dimensional wave run-up over breakwaters covered by antifer units. International Journal of Naval Architecture and Ocean Engineering, 6(2), 297-306. https://doi.org/10.2478/IJNAOE-2013-0180
  12. Natakusumah, D. K., Achiari, H., Nugroho, E. O., Adinata, F., Hidayatulloh, S., & Ishakputra, J. A. (2024). PentaPod: A New Type of Concrete Armor for Coastal Protection. Results in Engineering, 22, 102069. https://doi.org/10.1016/j.rineng.2024.102069
  13. Park, J.-C., Park, D.-I., Lee, S.-B., Hong, G.-Y., & Sun, S.-B. (2005). Numerical Simulation of Fully Nonlinear Free-Surface Flow Around Seawall with Slope. Journal of Ocean Engineering and Technology, 19(3), 18-24. https://www.joet.org/journal/view.php?number=1798
  14. Safari, I., Mouazé, D., Ropert, F., Haquin, S., & Ezersky, A. (2018). Hydraulic stability and wave overtopping of Starbloc® armored mound breakwaters. Ocean Engineering, 151, 268-275. https://doi.org/10.1016/j.oceaneng.2017.12.061
  15. Setiyadi, J., Handoko, D., Ayuningsih, T. L., Malik, K., Sartimbul, A., & Pranowo, W. S. (2023). Characteristics of Significant Wave Heights, Sea Surface Height Dynamics, and Surface Current Circulation in Jakarta Coastal Bay Based on Global Model Data. Jurnal Riset Jakarta, 16(2), 51-58. https://doi.org/10.37439/jurnaldrd.v16i2.89
  16. Topliss, M. E. (1994). Water wave impact on structures [Doctoral Thesis, University of Bristol]. https://research-information.bris.ac.uk/ws/portalfiles/portal/34485561/241557.pdf
  17. Triatmodjo, B. (1999). Coastal Engineering (5th ed.). Beta Offset.
  18. Zhao, H., Ding, F., Ye, J., Jiang, H., Chen, W., Gu, W., Yu, G., & Li, Q. (2024). Physical Experimental Study on The Wave Reflection and Run-Up of a New Ecological Hollow Cube. Journal of Marine Science and Engineering, 12(4), 664. https://doi.org/10.3390/jmse12040664