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浙江大学学报(工学版)
浙江大学学报(工学版)  2021, Vol. 55 Issue (5): 866-874    DOI: 10.3785/j.issn.1008-973X.2021.05.007
机械工程     
S型桨叶捕能消波浮式防波堤仿真及试验研究
黄方平1,2(),龚国芳1,杨灿军1,2,杨华勇1
1. 浙江大学 机械工程学院，浙江 杭州 310027
2. 浙大宁波理工学院，浙江 宁波 315100
Simulation and experimental study of energy-capturing and wave-dissipating floating breakwater with S type blade
Fang-ping HUANG1,2(),Guo-fang GONG1,Can-jun YANG1,2,Hua-yong YANG1
1. School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
2. Zhejiang University Ningbo Institute of Technology, Ningbo 315100, China
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摘要：

为了促进开放海域海养殖装备智能化、无人值守化发展，解决离岸养殖装备自主供能以及安全防护问题，针对所提出的Savonius型（S型）桨叶捕能消波式浮式防波堤，建立二维波浪数值水池，搭建物理水槽试验系统和海试系统，通过仿真和试验研究系统在不同结构参数下的水动力学特性，分析探究相对间距、相对入水深度、波陡对系统捕能消波性能的影响. 研究结果表明：该防波堤系统能同时进行捕能和消波，其捕能性能随着波陡的增加而增加，在周期1.6 s时捕能效果最好；消波性能随相对间距的增加而变好，透射系数为0.2~0.8，消波效果显著. 系统捕能与消波性能存在相互影响，多数情况下两者不能同时达到最佳. 海试运行测试验证了该型防波堤的捕能消波效果.
关键词： 浮式防波堤;  S型桨叶;  捕能消波;  透射系数;  水动力性能    
Abstract:

An energy-capturing and wave-dissipating floating breakwater with Savonius type (S type) blade was proposed, in order to promote the intelligent and unattended development of marine aquaculture equipment in open sea area, and to solve the problems of independent energy supply and safety protection?of offshore aquaculture equipment. A two-dimensional wave numerical pool was established, the physical tank test system and the sea test system were built. The hydrodynamic characteristics of the system under different structural parameters were studied by simulation and experiment, and the effects of relative spacing, relative depth of water entry and wave stepness?on the energy capture and wave dissipation performance of the system were analyzed. Results showed that the breakwater system can simultaneously capture energy and eliminate waves, the energy capture performance of the breakwater system increased with the increase of wave steepness, the energy capture effect was the best when the period was 1.6 s, and the wave dissipation performance became better with the increase of relative spacing. The transmission coefficient fluctuated in the range of 0.2~0.8, and the wave dissipation effect was remarkable. In most cases, the energy capture and the wave dissipation performance of the system can not reach the best at the same time. The sea trial operation test verifies the energy capture and wave dissipation effect of the floating breakwater system.
Key words: floating breakwater    S type blade    energy-capturing and wave-dissipating    transmission coefficient    hydrodynamic performance
收稿日期: 2020-07-24 出版日期: 2021-06-10
CLC:  TK 730.7  
基金资助: 国家自然科学基金资助项目（51605431）；宁波市重大科技攻关资助项目（2015C110015）
作者简介: 黄方平（1973—），男，副教授，硕士，从事海洋机电装备研究. orcid.org/0000-0002-7140-5422. E-mail： hfp618@163.com
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黄方平
龚国芳
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引用本文:

黄方平,龚国芳,杨灿军,杨华勇. S型桨叶捕能消波浮式防波堤仿真及试验研究[J]. 浙江大学学报(工学版), 2021, 55(5): 866-874.

Fang-ping HUANG,Guo-fang GONG,Can-jun YANG,Hua-yong YANG. Simulation and experimental study of energy-capturing and wave-dissipating floating breakwater with S type blade. Journal of ZheJiang University (Engineering Science), 2021, 55(5): 866-874.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2021.05.007    或    http://www.zjujournals.com/eng/CN/Y2021/V55/I5/866

图 1  二级S型桨叶三维结构
图 2  浮式防波堤三维结构
参数 数值/m 参数 数值/m
浮管直径 0.33 叶片半径 0.15
浮管间距 0.65 桨叶高 0.61
浮堤长度 3 桨叶间隙 0.3
桨叶直径 0.5 端板直径 0.5
表 1  浮式防波堤几何特征
参数 数值 单位
水深 2 m
吃水深度 1.7 m
HDPE浮体密度 0.95 kg/m3
桨叶排水量 10 kg
桨叶转动惯量 (0.337, 0.337, 0.160) kg·m2
表 2  浮式防波堤水动力参数表
图 3  浮式防波堤网格划分
图 4  浮式防波堤仿真实验模型
图 5  不同相对间距的仿真实验曲线
图 6  不同相对入水深度的仿真实验曲线
图 7  不同波陡的仿真实验曲线
图 10  浮式防波堤试验测试系统
图 8  浮式防波堤试验布置示意图
图 9  浮式防波堤物理试验模型
图 11  浮式防波堤试验现场
参数名称 符号 研究变量 单位
入水深度 D 0.70、0.75、0.80 m
堤宽 W 0.6、0.7、0.8 m
波高 h 0.09、0.14、0.19、0.24 m
波长 λ 2.186、2.250、2.377 m
波浪周期 S 1.5、1.6、1.7 s
相对入水深度 D/λ 0.294、0.311、0.316；0.320、0.333、
0.337；0.343、0.356、0.366 		?
相对间距 W/λ 0.252、0.267、0.274；0.290、0.311、
0.320；0.356、0.366、0.367 		?
波陡 h/λ 0.037、0.04、0.041；0.059、0.062、0.064；0.080、0.084、0.087；0.101、0.107、0.109 ?
表 3  浮式防波堤试验组次数据
图 12  不同相对间距的捕能消波曲线
图 13  不同相对入水深度的捕能消波曲线
图 14  不同波陡的捕能消波曲线
图 15  海试防波堤实物结构
图 16  浮式防波堤海试地点
图 17  防波堤海试现场捕能消波实况
工况 h /m T /s Ct n /（r·min?1） N /（N·m） P/W
1 0.8 3 0.568 19.3 429.0 867
2 0.8 4 0.613 15.2 573.0 912
3 0.8 5 0.642 11.8 772.0 954
4 1.2 4 0.607 15.8 542.1 897
5 1.2 5 0.707 12.6 775.3 1023
6 1.2 6 0.700 10.2 985.8 1053
7 1.5 4 0.689 15.2 818.6 1303
8 1.5 5 0.664 12.3 1001.5 1290
9 1.8 6 0.687 9.8 1245.3 1278
10 1.8 5 0.651 11.8 1053.7 1302
11 2.2 6 0.708 9.8 1290.2 1324
12 2.2 7 0.753 8.5 1575.4 1414
表 4  海试数据表
图 18  海试防波堤捕能消波性能曲线
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