Abstract
In this study, systematic physical model tests were performed to investigate the wave forces on the twin-plate breakwater under irregular waves. Based on the experimental results, the effects of the relative plate width B/L, wave height H s/D and incident angle θ 0 on the wave forces were analyzed and discussed. The results showed that: (1) The envelopes of the total wave pressure were generally symmetrical along the direction of plate width under the incident angles (θ 0) being 0°, 15°, 30°, 45° and 60°. In particular, the envelopes of wave pressure at θ 0=30° were larger than all other cases. (2) The synchronous pressure distribution of the breakwater under oblique wave action was more complicated comparing to the normal incident waves. (3) Based on data analysis, an empirical formula was obtained to estimate the total vertical force of the twin-plate breakwater. This empirical formula can be a good reference for the design basis of engineering applications under specified wave conditions.
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References
Cheong H F, Patarapanich M. 1992. Reflection and transmission of random waves by a horizontal double-plate breakwater. Coastal Engineering, 18(1–2): 63–82
Goda Y. 2010. Random Seas and Design of Maritime Structures. 3rd ed. New Jersey: World Scientific Publishing Company, 416–479
Gu Qian, Zhang Ningchuan. 2016. Experimental studies on oblique wave and twin-plate breakwater. Scientia Sinica (Physica, Mechanica & Astronomica (in Chinese), 46(2): 024701
Kang Haigui, Wang Ke. 2002. Numerical investigation on submerged horizontal plate. Marine Science Bulletin (in Chinese), 21(1): 1–8
Li Jingbo. 2014. Study on the hydrodynamics of horizontal twin-plate breakwater (in Chinese) [dissertation]. Dalian: Dalian University of Technology
Li Benxia, Yu Yuxiu. 2002. Directional spectrum analysis of multidirectional random wave. Coastal Engineering (in Chinese), 21(3): 1–7
Neelamani S, Gayathri T. 2006. Wave interaction with twin plate wave barrier. Ocean Engineering, 33(3–4): 495–516
Patarapanich M. 1984. Forces and moment on a horizontal plate due to wave scattering. Coastal Engineering, 8(3): 279–301
Patarapanich M, Cheong H F. 1989. Reflection and transmission characteristics of regular and random waves from a submerged horizontal plate. Coastal Engineering, 13(2): 161–182
Qiu Dahong, Jia Ying, Zang Jun. 1996. The interaction of cnoidal wave and vertical wall. Journal of Hydraulic Engineering (in Chinese), (9): 11–21
Tang Yanlin. 2006. The study of wave-dissipating performance of Twin-plate penetrating breakwater (in Chinese) [dissertation]. Dalian: Dalian University of Technology
Usha R, Gayathri T. 2005. Wave motion over a twin-plate breakwater. Ocean Engineering, 32(8–9): 1054–1072
Wang Liqin. 2006. The study of 2-d and 3-d random waves acting on a semicircular breakwater (in Chinese) [dissertation]. Dalian: Dalian University of Technology
Wu Zongren. 2000. Coast Hydrodynamics (in Chinese). 3rd ed. Beijing: China Communications Press, 46–61
Xie Shileng. 1999. Progress of breakwater design in China since the Nineties. Port & Waterway Engineering (in Chinese), (10): 11–17
Yu Yuxiu. 2003. Random Wave and Its Applications to Engineering (in Chinese). 3rd ed. Dalian: Dalian University of Technology Press, 199–218
Yu Yuxiu, Li Benxia, Zhang Ningchuan. 2003. Oblique and multi-directional random wave loads on vertical breakwaters. China Ocean Engineering, 17(2): 189–201
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Foundation item: The National Natural Science Foundation of China under contract Nos 51079025 and 11272079; the Research Funds from State Key Laboratory of Coastal and Offshore Engineering under contract No. LY1602.
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Gu, Q., Huang, G., Zhang, N. et al. Experimental study on the wave loads of twin-plate breakwater under oblique waves. Acta Oceanol. Sin. 35, 100–109 (2016). https://doi.org/10.1007/s13131-016-0925-7
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DOI: https://doi.org/10.1007/s13131-016-0925-7