A preliminary experimental study on the hydrodynamic behaviors of double-row floating breakwaters is carried out in a wave flume under regular wave action. The floating breakwater chosen as the experimental subject is a dual rectangular pontoon floating breakwater. The hydrodynamic behaviors of the floating breakwater are validated through the calculation of the wave transmission coefficients, the wave reflection coefficients, the motion responses of the floating breakwaters and the mooring forces for different waves and structural parameters. The dynamic responses of single-row floating breakwater as a control group are also examined in the present experiments. The results indicate that double-row floating breakwaters significantly reduces the transmission coefficients as compared with single-row floating breakwater, especially for short-period wave, which is attributed to dissipation caused by eddies and moon-pool effect. However, the reflection performance is almost identical between two types. It is also found that the motion responses of the single-row and double-row floating breakwaters are similar. Spacing distance between double-row floating breakwaters has a significant influence on the windward mooring tension of the model at the upstream location, which always keeps the largest level in all mooring forces.
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Funding was provided by National Natural Science Foundation of China (CN) (Grant nos. 51579122, 51622902, 51609109), Natural Science Foundation of Jiangsu Province (Grant no. BK20160556), University Natural Science Research Project of Jiangsu Province (Grant no. 16kjd70003) and Key Lab Foundation for Advanced Manufacturing Technology of Jiangsu Province (Grant no. CJ1506).
Arunachalam VM, Raman H (1982) Experimental studies on a perforated horizontal floating plate breakwater. Ocean Eng 9(1):35–45CrossRefGoogle Scholar
Sannasiraj SA, Sundar V, Sundaravadivelu R (1998) Mooring forces and motion responses of pontoon-type floating breakwaters. Ocean Eng 25(1):27–48CrossRefGoogle Scholar
Bayram A (2000) Experimental study of a sloping floating breakwater. Ocean Eng 27(4):445–453CrossRefGoogle Scholar
Rahman MA, Mizutani N, Kawasaki K (2006) Numerical modeling of dynamic responses and mooring forces of submerged floating breakwater. Coast Eng 53(10):799–815CrossRefGoogle Scholar
Dong GH, Zheng YN, Li YC, Teng B et al (2008) Experiments on wave transmission coefficients of floating breakwaters. Ocean Eng 35(8):931–938CrossRefGoogle Scholar
Wang HY, Sun ZC (2010) Experimental study of a porous floating breakwater. Ocean Eng 37(5):520–527CrossRefGoogle Scholar
Ozeren Y, Wre DG, Altinaka M, Work PA (2011) Experimental investigation of cylindrical floating breakwater performance with various mooring configurations. J Waterw Port Coast Ocean Eng 137(6):300–309CrossRefGoogle Scholar
Koraima AS, Rageh OS (2013) Effect of under connected plates on the hydrodynamic efficiency of the floating breakwater. China Ocean Eng 28(3):349–362CrossRefGoogle Scholar
Ferreras J, Peña E, López A, López F (2014) Structural performance of a floating breakwater for different mooring line typologies. J Waterw Port Coast Ocean Eng 140(3):158–163CrossRefGoogle Scholar
Williams AN, Abul-Azm AG (1997) Dual pontoon floating breakwater. Ocean Eng 24(5):465–478CrossRefGoogle Scholar
Murali K, Mani JS (1998) Performance of cage floating breakwater. J Waterw Port Coast Ocean Eng 123(4):172–179CrossRefGoogle Scholar
Peña E, Ferreras J, Sanchez-Tembleque F (2011) Experimental study on wave transmission coefficient, mooring lines and module connector forces with different designs of floating breakwaters. Ocean Eng 38(10):1150–1160CrossRefGoogle Scholar
Ji CY, Chen X, Cui J, Yuan ZM et al (2015) Experimental study of a new type of floating breakwater. Ocean Eng 105:295–303CrossRefGoogle Scholar
Ji CY, Chen X, Cui J et al (2016) Experimental study on configuration optimization of floating breakwaters. Ocean Eng 117:302–310CrossRefGoogle Scholar
Ji CY, GUO YC, Cui J, Yuan ZM, Ma XJ et al (2016) 3D experimental study on a cylindrical floating breakwater system. Ocean Eng 125:38–50CrossRefGoogle Scholar
Ji CY, Cheng Y, Yang K, Oleg G (2017) Numerical and experimental investigation of hydrodynamic performance of a cylindrical dual pontoon-net floating breakwater. Coastal Eng 129:1–16CrossRefGoogle Scholar