斜向波与带填料开孔板式防波堤相互作用的研究
The theoretical study on the interaction of diagonal waves with perforated-wall breakwater with rock fill
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摘要: 基于线性势流理论,对斜向波与消浪室内带部分填料的开孔板式防波堤结构的相互作用进行了理论研究.利用匹配特征函数展开法给出了开孔防波堤结构反射系数和波浪力系数的理论计算方法,在极限情况下的计算结果与已有结果一致.利用数值算例分析了开孔结构反射系数和波浪力系数的主要影响因素.增加消浪室内填料厚度通常可以降低开孔墙结构的波浪力系数,加大结构的反射系数.随着波浪入射角度的增加,带填料防波堤结构的反射系数值先减小,达到最小值后又单调增加.Abstract: The interaction of diagonal waves with perforated wall breakwater partially filled with rock fill is studied using t he linear po tential theory.By means of the matched eigenfunction expansion method,an analy tical method is presented to calculate the reflection coefficient and the wave force coefficient of the breakwater.The calculated results of the reflection coefficient for limiting cases are the same to the existing results.The main influencing factors of the reflection coefficient and the wave force coefficient are analyzed by numerical examples.With the increasing of thickness of rock fill,the wave force coefficient on the perforated wall generally decreases,while the reflection coefficient increases.With the increasing of the in cident angle of the wave,the reflection coefficient of the breakwater first decreases,reaches its minimum,and then increases monotonously.
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Key words:
- diagonal wave /
- perforated wall /
- rock fill /
- reflection coefficient /
- wave force
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JARLAN G E.A perforated wall breakwater[J].The Dock and Harbour Authority,1961,41(486):394-398. KONDO H.Analysis of breakwaters having two porous walls[G]//Coastal Structures'79.Alexandria:ASCE,1979:962-971. FUGAZZA M,NATALE L.Hydraulic design of perforated breakwater[J].Journal of Waterway,Port,Coastal,and Ocean Engineering,ASCE,1992,118(1),1-14. TANIMOTO K,YOSHIMOTO Y.Theoretical and experimental study of reflection coefficient for wave dissipating caisson with a permeable front wall[J].Report of the Port and Harbour Research Institute,1982,21(3):44-77. LI Yu-cheng,LIU Hong-jie,TENG Bing,et al.Reflection of oblique incident waves by breakwaters with partially-perforated wall[J].China Ocean Engineering,2002,16(3):329-324. YIP T L,CHWANG A T.Perforated wall breakwater with internal horizontal plate[J].Journal of Engineering Mechanics,ASCE,2000,126(5):533——538. ISAACSON M,BALDWIN J,ALLYN N,et al.Wave interactions with perforated breakwater[J].Journal of Waterway,Port,Coastal,and Ocean Engineering,ASCE,2000,126(5):229-235. TENG Bin,ZHANG Xiao-tu,Ning De-zhi.Interaction of oblique waves with infinite number of perforated caissons[J].Ocean Engineering,2004,31:615-632. 刘勇,李玉成,滕斌,等.带横隔板局部开孔沉箱在斜向波作用下的受力分析[J].海洋学报,2008,30(2):137-146. LIU Yong,LI Yu-cheng.Wave interaction with a modified Jarlan-type perforated breakwater[G]//Proceedings of the 7th ISOPE Pacific/Asia Offshore Mechanics Symposium.Dalian:ISOPE,2006:274-281. SOLLITT C K,CROSS R H.Wave transmission through permeable breakwaters[C]//Proceedings of the 13th Coastal Engineering Conference,v3.Vancouver:ASCE,1972:1827-1846. YU Xi-ping.Diffraction of water waves by porous breakwaters[J].Journal of Waterway,Port,Coastal,and Ocean Engineering,ASCE,1995,121(6):276——282. SAHOO T,LEE M M,CHWANG A T.Trapping and generation of waves by vertical porous structures[J].Journal of Engineering Mechanics,ASCE,2000,126(10):1074-1082. LOSADA I J,SILVA R,LOSADA M A.3-D non-breaking regular wave interaction with submerged breakwaters[J].Coastal Engineering,1996,28:229-248. DALRYMPLE R A,LOSADA M A,MARTIN P A.Reflection and transmission from porous structures under oblique wave attack[J].Journal of Fluid Mechanics,1991,224:625-644.
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