Numerical study of various geometries of breakwaters for the installation of floating wind turbines

IF 1.2 Q3 ENGINEERING, MARINE

Journal of Naval Architecture and Marine Engineering Pub Date : 2016-06-15 DOI:10.3329/JNAME.V13I1.22866

Keyvan Esmaeelpour, R. Shafaghat, R. Alamian, R. Bayani

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引用次数: 2

Abstract

The everyday growing populations all over the world and the necessity of increase in consumption of fossil energies have made the human to discover new energy resources, which are clean, cheap and renewable. Wind energy is one of the renewable energy resources. Considerable wind speed has made settling of wind turbines at sea beneficial and appealing. For this purpose, choosing the appropriate plates to set up wind turbines on the surface of sea is necessary. Regarding the installation condition, by choosing suitable geometry for floating breakwaters, offshore wind turbine can be mounted on them. Suitable geometry of breakwater for multifunctional usage could be selected with analyzing and comparing pressure, force and moment produced by incoming waves. In this article, we implement boundary element method to solve governing differential equations by assuming potential flow. On the other hand, for promoting free surface in each time step, we employed Euler-Lagrangian method. Finally, to find the appropriate geometry for installing the wind turbine on the breakwater, moment and wave profile next to the right and left side of breakwater body are calculated. Among simulated geometries, breakwater with trapezoid geometry which its larger base is placed in the water has more sustainability and it is the most suitable geometry for wind turbine installation.

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安装浮式风力发电机用防波堤不同几何形状的数值研究

世界范围内日益增长的人口和化石能源消费增加的必要性促使人类去发现清洁、廉价和可再生的新能源。风能是可再生能源之一。相当大的风速使得在海上安置风力涡轮机是有益的和有吸引力的。为此，选择合适的板在海面上设置风力涡轮机是必要的。在安装条件上，通过选择合适的浮动防波堤几何形状，可以将海上风力发电机安装在浮动防波堤上。通过对来浪产生的压力、力和力矩的分析比较，选择适合多功能使用的防波堤几何形状。本文采用边界元法，在假设势流的条件下求解控制微分方程。另一方面，对于在每个时间步长的自由曲面，我们采用欧拉-拉格朗日方法。最后，计算了防波堤左右两侧的弯矩和波浪剖面，以确定在防波堤上安装风力机的合适几何形状。在模拟的几何形状中，梯形防波堤的底座放置在水中较大，具有更强的可持续性，是最适合风力机安装的几何形状。

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

Journal of Naval Architecture and Marine Engineering ENGINEERING, MARINE-

CiteScore

2.50

自引率

5.60%

发文量

审稿时长

20 weeks

期刊介绍： TJPRC: Journal of Naval Architecture and Marine Engineering (JNAME) is a peer reviewed journal and it provides a forum for engineers and scientists from a wide range of disciplines to present and discuss various phenomena in the utilization and preservation of ocean environment. Without being limited by the traditional categorization, it is encouraged to present advanced technology development and scientific research, as long as they are aimed for more and better human engagement with ocean environment. Topics include, but not limited to: marine hydrodynamics; structural mechanics; marine propulsion system; design methodology & practice; production technology; system dynamics & control; marine equipment technology; materials science; under-water acoustics; satellite observations; and information technology related to ship and marine systems; ocean energy systems; marine environmental engineering; maritime safety engineering; polar & arctic engineering; coastal & port engineering; aqua-cultural engineering; sub-sea engineering; and specialized water-craft engineering. International Journal of Naval Architecture and Ocean Engineering is published quarterly by the Society of Naval Architects of Korea. In addition to original, full-length, refereed papers, review articles by leading authorities and articulated technical discussions of highly technical interest are also published.