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Volume 15, Issue 30 (1-2020)                   Marine Engineering 2020, 15(30): 93-111 | Back to browse issues page

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Choopanizade M J, Bakhtiari M, Rostami M. Presentation of New Design of Perforated Half-Depth Wall Breakwater. Marine Engineering 2020; 15 (30) :93-111
URL: http://marine-eng.ir/article-1-736-en.html
Presentation of New Design of Perforated Half-Depth Wall Breakwater
Mohammad javad Choopanizade1 , Morteza Bakhtiari * 1, Mohammad Rostami2
1- Khorramshahr University of Marine Science and Technology
2- Tehran Institute of Soil Conservation and Watershed Management
Abstract:   (3427 Views)
The present study aims to introduce a new lattice wall breaker. The wall of this breaker is made up of small PVC cubic elements (PVC). Each of these cuboid shapes (blocks) has two holes, which, when placed on each other and through the metal cable through them, blocks are woven together. In the present study, three models of structures (with different porosity percent) are evaluated by examining three wave heights and at least 10 periods of rotation in a depth of water and a constant nourishment depth of the structure. The results showed that the decrease of wave height by 50%, in the porosity of the wall is 15%. The behavior of each model of the structure against the waves was also justified by accurate examination of the shock wave power.
Keywords: Wall breakwater, Perforated wall, Wave transmission, Physical model, Regular waves
Full-Text [PDF 1342 kb]   (1744 Downloads)    
Type of Study: Research Paper | Subject: Marine Structures and near shore
Received: 2019/06/11 | Accepted: 2019/12/14
References
1. Chegini, V., (Ed.)., (1998), Manual on the De-sign of Breakwaters, Water and Watershed Re-search Jihad Company, Tehran. (In Persian)
2. Jarlan, G., (1961), A perforated vertical wall breakwater, The Dock and Harbour Authority, Vol.486, p.394-398.
3. Mani, J., and Jayakumar, S., (1995), Wave transmission by suspended pipe breakwater, Jour-nal of waterway, port, coastal, and ocean engineer-ing, Vol.121, p.335-338. [DOI:10.1061/(ASCE)0733-950X(1995)121:6(335)]
4. Suh, K.D., et al., (2006), Wave reflection from partially perforated-wall caisson breakwater, Ocean Engineering, Vol.33, p.264-280. [DOI:10.1016/j.oceaneng.2004.11.015]
5. Marks, W., (1967), A perforated mobile break-water for fixed and floating application, Coastal Engineering 1966, p.1079-1129. [DOI:10.1061/9780872620087.064]
6. Sawaragi, T., et al., (1976), Transmission et re-flexion de la houle par une digue formée de planches verticales, La Houille Blanche, p.625-637. [DOI:10.1051/lhb/1976041]
7. Koraim, A., and Salem, T., (2012), The hydro-dynamic characteristics of a single suspended row of half pipes under regular waves, Ocean Engi-neering, Vol.50, p.1-9. [DOI:10.1016/j.oceaneng.2012.04.008]
8. Huang, Z., (2007), Wave interaction with one or two rows of closely spaced rectangular cylinders, Ocean Engineering, Vol.34, p.1584-1591. [DOI:10.1016/j.oceaneng.2006.11.002]
9. Isaacson, M., et al., (1998), Wave interactions with vertical slotted barrier, Journal of waterway, port, coastal, and ocean engineering, Vol.124, p.118-126. [DOI:10.1061/(ASCE)0733-950X(1998)124:3(118)]
10. Isaacson, M., et al., (1999), Wave interactions with double slotted barriers, Applied ocean re-search, Vol.21, p.81-91. [DOI:10.1016/S0141-1187(98)00039-X]
11. Liu, Y., (2007), Wave interaction with a perfo-rated wall breakwater with a submerged horizontal porous plate, Ocean Engineering, Vol.34, p.2364-2373. [DOI:10.1016/j.oceaneng.2007.05.002]
12. Kou, Y., (2019), Performance characteristics of a conceptual ring-shaped spar-type VLFS with double-layered perforated-wall breakwater, Ap-plied Ocean Research, Vol.86, p.28-39. [DOI:10.1016/j.apor.2019.02.011]
13. Mani, J., (1998), Wave forces on partially submerged pipe breakwater, Ocean Wave Kine-matics, Dynamics and Loads on Structures, ASCE.
14. Galal, S., (2002), The use of permeable break-water for sea defense and shore protection, Master thesis, Faculty of Engineering, Suez Canal Univer-sity, Port Said, Egypt.
15. Rao, S., et al., (2003), Energy dissipation at single row of suspended perforated pipe breakwa-ters, Journal of the Institution of Engineers. India. Civil Engineering Division, Vol.84, p.77-81.
16. Sorensen, R.M., (Ed.)., (2005), Basic coastal engineering (Bargi, k., Trans.). Tehran, Iran: UT. (In Persian)
17. He, F., and Huang, Z., (2014), Hydrodynamic performance of pile-supported OWC-type struc-tures as breakwaters: An experimental study, Ocean Engineering, Vol.88, p.618-626. [DOI:10.1016/j.oceaneng.2014.04.023]
18. Ji, C.Y., et al., (2016), 3D experimental study on a cylindrical floating breakwater system, Ocean Engineering, Vol.125, p.38-50. [DOI:10.1016/j.oceaneng.2016.07.051]
19. Wang, Y., et al., (2006), Experimental study on the performance of the multiple-layer breakwater, Ocean Engineering, Vol.33, p.1829-1839. [DOI:10.1016/j.oceaneng.2005.10.017]
20. Fang, Z., et al., (2018), Experimental study of the wave-dissipating performance of a four-layer horizontal porous-plate breakwater, Ocean Engi-neering, Vol.151, p.222-233. [DOI:10.1016/j.oceaneng.2018.01.041]
21. Wang, G., et al., (2016), Experimental study on hydrodynamic performance of arc plate breakwa-ter, Ocean Engineering, Vol.111, p.593-601. [DOI:10.1016/j.oceaneng.2015.11.016]
22. Koraim, A., (2015), Mathematical study for analyzing caisson breakwater supported by two rows of piles, Ocean Engineering, Vol.104, p.89-106. [DOI:10.1016/j.oceaneng.2015.04.088]
23. Neelamani, S., and Ljubic, J., (2018), Experi-mental Study on the Hydrodynamic Performance of Floating Pontoon Type Breakwater with Skirt Walls, Journal of Offshore Mechanics and Arctic Engineering, Vol.140, p.021303. [DOI:10.1115/1.4038343]
24. Koraim, A., et al., (2014), Hydrodynamic characteristics of porous seawall protected by submerged breakwater, Applied ocean research, Vol.46, p.1-14. [DOI:10.1016/j.apor.2014.01.003]
25. Koraim, A., (2013), Hydrodynamic efficiency of suspended horizontal rows of half pipes used as a new type breakwater, Ocean Engineering, Vol.64, p.1-22. [DOI:10.1016/j.oceaneng.2013.02.008]
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