Experimental hydrodynamic assessment of a cylindrical-type floating solar system exposed to waves

IF 13 1区 工程技术 Q1 ENGINEERING, MARINE
Dallán Friel , Madjid Karimirad , Trevor Whittaker , John Doran
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引用次数: 0

Abstract

In this paper, an experimental investigation on the wave loads and structural motions of two semi-fixed semi-immersed horizontal cylinders type rafts in the free surface zone is conducted. The physical models are tested at the 1:4.5 scale and exposed to a range of regular and irregular waves in a wave flume at Queen's University Belfast. The physical models and experimental setup are discussed alongside an investigation of the hydrodynamic phenomena, surge forces, and dynamic responses that each structure exhibits in the coastal wave climates. Furthermore, an investigation into the wave attenuation by both models is carried out. The results show that the surge forces have a positive correlation with wave steepness for both models. Hydrodynamic phenomena such as wave runup and overtopping, radiative damping and reflected waves, constructive interference, diffraction and flow separation were identified during the experiments. A negative mean heave displacement is observed during the monochromatic sea states which could result in impact loading and submergence of the superstructure components and photovoltaic panels at full-scale. The results presented in this paper may be used to calibrate and verify numerical models that calculate the global responses and hydrodynamic forces. It may also benefit the design processes of geometrically similar floating solar technologies by providing data on surge loads, motion responses and hydrodynamic observations.

波浪作用下圆柱形漂浮太阳系的实验流体动力学评估
本文对自由水面区两个半固定半浸没水平圆柱型筏的波浪荷载和结构运动进行了试验研究。物理模型以1:4.5的比例进行测试,并在贝尔法斯特女王大学的波浪水槽中暴露在一系列规则和不规则的波浪中。讨论了物理模型和实验装置,同时研究了每个结构在海岸波浪气候中表现出的水动力现象、涌浪力和动力响应。此外,还对两种模型的波衰减进行了研究。结果表明,两种模型的涌浪力均与波浪陡度呈正相关。实验中发现了波浪爬高和漫顶、辐射阻尼和反射波、相长干涉、衍射和流分离等水动力现象。在单色海况期间观察到负平均升沉位移,这可能导致冲击载荷和上层建筑组件和光伏板在全尺寸下沉没。本文给出的结果可用于校准和验证计算全局响应和水动力的数值模型。它还可以通过提供浪涌负载、运动响应和流体动力学观测的数据,使几何相似的浮动太阳能技术的设计过程受益。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
11.50
自引率
19.70%
发文量
224
审稿时长
29 days
期刊介绍: The Journal of Ocean Engineering and Science (JOES) serves as a platform for disseminating original research and advancements in the realm of ocean engineering and science. JOES encourages the submission of papers covering various aspects of ocean engineering and science.
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