Write your message
Volume 15 - Winter and Spring 2021                   ijmt 2021, 15 - Winter and Spring 2021: 147-155 | Back to browse issues page

XML Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Ghasemi A, Amirabadi R, Kamalin U R, Rezaee Mazyak A. Numerical modeling of armour type and arrangement effects on wave overtopping at rubble mound breakwater. ijmt 2021; 15 :147-155
URL: http://ijmt.ir/article-1-766-en.html
Numerical modeling of armour type and arrangement effects on wave overtopping at rubble mound breakwater
Ali Ghasemi * 1, Rouhollah Amirabadi1 , Ulrich Reza Kamalin1 , Ahmad Rezaee Mazyak2
1- Civil Engineering Department, Faculty of Engineering, University of Qom
2- Tarbiat Modares University
Abstract:   (1957 Views)
The wave overtopping phenomenon at rubble mound breakwaters is one of the most important issues during the past few years and always plays a unique role in the design process of such structures. Most modeling studies in the overtopping measurment have been based on experimental methods and numerical modeling of wave overtopping from porous breakwater with pre-fabricated armour layer, under irregular waves has been less investigated. In this study, FLOW-3D software was used to calculate overtopping discharge. To assess the accuracy of software results, first, for three of modeled wave heights in the laboratory, numerical modeling was performed and the comparison between numerical and experimental overtopping results showed about 15% error which is acceptable considering the differences between numerical and experimental modeling characteristics, errors and uncertainty in numerical modeling. In the following, numerical modeling for concrete pre-fabricated Xbloc, Antifer, and Tetrapad armour units with different arrangements has been performed. The comparison between results shows that the Antifer armours have the least overtopping and the regular arrangement of Xbloc has the most.
Keywords: Rubble mound breakwater, pre-fabricated armour units, overtopping, FLOW-3D software
Full-Text [PDF 623 kb]   (826 Downloads)    
Type of Study: Research Paper | Subject: Submarine Hydrodynamic & Design
Received: 2021/09/4 | Accepted: 2021/12/5
References
1. A.Farhadzadeh, M.shafee far, "Analytical study of existing models for measuring wave overtopping in coastal structures". Eighth Conference on Marine Industries. Iran, Bushehr.
2. K. Hu, C. G. Mingham, and D. M. Causon, "Numerical simulation of wave overtopping of coastal structures using the non-linear shallow water equations," Coast. Eng., vol. 41, no. 4, pp. 433-465, 2000. [DOI:10.1016/S0378-3839(00)00040-5]
3. P. Besley, T. Stewart, and N. W. H. Allsop, "Overtopping of vertical structures: new prediction methods to account for shallow water conditions," Proc. Coastlines, Struct. Break. London, UK, pp. 46-57, 1998. [DOI:10.1680/csab.26681.0005]
4. Y. Goda, "Random seas and design of maritime structures". World Scientific, 2010. [DOI:10.1142/7425]
5. T. S. Hedges, M. T. Reis, and M. W. OWEN, "Random Wave Overtopping Of Simple Sea Walls: A New Regression Model.," Proc. ICE-Water Marit. Energy, vol. 130, no. 1, pp. 1-10, 1998. [DOI:10.1680/iwtme.1998.30223]
6. J. W. van der Meer, J. P. F. M. Janssen, and D. Hydraulics, "Wave run-up and wave overtopping at dikes and revetments". Delft Hydraulics, 1994.
7. N. Kobayashi and A. Wurjanto, "Wave overtopping on coastal structures," J. Waterw. Port, Coastal, Ocean Eng., vol. 115, no. 2, pp. 235-251, 1989. [DOI:10.1061/(ASCE)0733-950X(1989)115:2(235)]
8. Marayama and Hiraishi, "presented a numerical model for calculation of over topping discharge for a vertical breakwater in multi direction wave",The basic assumption is that the overtopping discharge can be described by a weir expression as suggested by Kikkawa et al 1988." 1988.
9. M. D. Torrey, L. D. Cloutman, R. C. Mjolsness, and C. W. Hirt, "NASA-VOF2D: a computer program for incompressible flows with free surfaces," NASA STI/Recon Tech. Rep. N, vol. 86, p. 30116, 1985.
10. J. M. Sicilian, C. W. Hirt, and R. P. Harper, "FLOW-3D: Computational modeling power for scientists and engineers," Flow Sci. report, FSI-87-QO-l, 1987.
11. F. Dentale, G. Donnarumma, and E. E. P. Carratelli, "Rubble Mound Breakwater: Run-Up, Reflection and Overtopping by Numerical 3D Simulation," flow3d.com, 2012.
12. Ghasemi A, Shafiee far M, Panahi R. "Numerical Simulation of Wave Overtopping From Armour Breakwater by Considering Porous Effect". marine-engineering. 2016; 11 (22) :51-60.
13. Marashian S M, Adjami M, Rezaee Mazyak A. "Numerical Simulation of Wave Overtopping Over Composite Berm Breakwater" . marine-engineering. 2019; 15 (29) :25-38
14. Amirabadi R, Rezaee mazyak A, Ghasemi A. "Numerical Modeling Investigation of Irregular Wave Interaction with Perforated Caisson Breakwater". marine-engineering. 2018; 14 (27) :69-79
15. F. Science, "FLOW-3D Documentation," 2012.
16. Mousavi B, Saadatkhah N,A Haj Momeni. "Stability Evaluation of Breakwater Inner Slope under Overpassing, Based on Physical
17. Modeling and Comparing with Experimental Relations (Case Study: Breakwaters in Anzali Port Development Plan)". 2011; 10th international conferancces of coastal, ports and, marine sutrucutres, Iran, Tehran,.
18. Y. Goda, "Statistical variability of sea state parameters as a function of wave spectrum," Coast. Eng. Japan, vol. 31, no. 1, pp. 39-52, 1988. [DOI:10.1080/05785634.1988.11924482]
19. P. Bakker, M. Klabbers, M. Muttray, and A. van den Berge, "Hydraulic performance of Xbloc® armour units, in 1st international conference on coastal zone management and engineering in the Middle East", 2005.
20. A. B. Frens, "The impact of placement method on Antifer-block stability", Delft Univ. Technol. Delft, 2007.
21. J. Fabião, A. T. Teixeira, and M. Araújo, "hydraulic stability of tetrapod armour layers-physical model study", Instituto Superior Técnico, Universidade Técnica de Lisboa 2009.
Send email to the article author

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Creative Commons License
International Journal of Maritime Technology is licensed under a

Creative Commons Attribution-NonCommercial 4.0 International License.