An experimental study of double-row floating breakwaters
An experimental study of double-row floating breakwaters
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双排浮动防波堤试验研究
DOI：
10.1007/s00773-018-0554-2
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发表时间：
2019
影响因子：
2.6
通讯作者：
Cheng Yong
中科院分区：
文献类型：
--
作者：
Ji Chunyan;Deng Xiaokang;Cheng Yong
对规则波作用下双排浮式防波堤在波浪水槽中的水动力特性进行了初步试验研究。浮式防波堤为双矩形浮式防波堤。通过计算浮式防波堤的波浪传输系数、波浪反射系数、浮式防波堤的运动响应以及不同波浪和结构参数下的系泊力，验证了浮式防波堤的水动力特性。以单排浮式防波堤为对照，对其动力响应进行了试验研究。结果表明，与单列浮堤相比，双排浮堤的透波系数显著降低，特别是对短周期波，这主要是由于涡流和月池效应引起的消散作用。但是，两种类型的反射性能几乎相同。研究还发现，单排和双排浮式防波堤的运动响应是相似的。双排浮式防波堤之间的间距对模型在上游位置的迎风系泊张力影响很大，在所有系泊力中始终保持最大水平。
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.