This article is Part B of a study into the proof-of-concept of a floating breakwater integrated with multiple Oscillating Water Column (OWC) Wave Energy Converters (WEC). The structure is designed for nearshore and offshore applications and the investigation was performed through model scale hydrodynamic experimentation. Part A introduced the concept and the experiments performed, followed by an investigation into the energy extraction performance of the installed OWC devices [1]. This paper covers the impact of the OWC WECs on the floating breakwater's wave attenuation and motion characteristics. As this investigation took a proof-of-concept approach, a soft mooring system was configured to the device in order to establish the general behaviour of the structure. Results indicate that the pitch motion was the most detrimental motion in terms of OWC device performance, but this is expected to be mitigated with incorporation of realistic mooring arrangements. Additionally, findings infer that in majority of cases, OWC device integration has beneficial impacts on both the wave attenuation and motions of the breakwater structure, lending further credence to the economic and performance viability of the concept.

中文翻译：

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浮式防波堤内集成多个振荡水柱波浪能转换器的实验研究：波浪衰减和运动特性

本文是与多个振荡水柱 (OWC) 波浪能转换器 (WEC) 集成的浮动防波堤概念验证研究的 B 部分。该结构专为近海和近海应用而设计，调查是通过模型规模的水动力实验进行的。A 部分介绍了概念和进行的实验，然后调查了已安装的 OWC 设备的能量提取性能 [1]。本文介绍了 OWC WEC 对浮动防波堤的波浪衰减和运动特性的影响。由于这项调查采用了概念验证方法，因此为设备配置了软系泊系统，以建立结构的一般行为。结果表明，就 OWC 设备性能而言，俯仰运动是最有害的运动，但预计通过结合实际的系泊装置可以减轻这种情况。此外，研究结果推断，在大多数情况下，OWC 设备集成对防波堤结构的波浪衰减和运动都有有益影响，进一步证明了该概念的经济和性能可行性。