Effects of covers on dynamic response of a barge-type wind turbine with four moonpools

IF 4.6 2区工程技术 Q1 ENGINEERING, CIVIL

Ocean Engineering Pub Date : 2025-06-24 DOI:10.1016/j.oceaneng.2025.121987

Shi Yan Sun , Yueyang Li , Jie Cui , Yuanchang Liu

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引用次数: 0

Abstract

A floating barge-type platform equipped with moonpools and a 5 MW wind turbine is investigated using Finite Volume Method (FVM) and Volume of Fluid Method (VOF), based on fully nonlinear viscous flow theory. The computational domain, comprising both air and water, is modelled using Reynolds-Averaged Navier-Stokes (RANS) equations and continuity equations, employing the Shear Stress Transport (SST) turbulence model. Wind turbine is given a constant rotational speed, and a sliding grid is applied in the fan area to realize the rotation of the wind turbine. The overlapping grid is used in the area containing the fan, tower and the floating barge to achieve the overall motion response of the floating system. In this study, a method of reducing the tilt angle of the entire floating wind turbine system is proposed through involving covers over the free surface inside the moonpools. The results indicate that adding cover can ease the deviation of the floating system noticeably. But if adding cover, the damping effects of moonpools are suppressed, and the heave and pitch amplitude will both increase.

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盖板对带有四个月池的驳船型风力机动力响应的影响

采用基于全非线性粘性流动理论的有限体积法（FVM）和流体体积法（VOF），对装有月池的浮式驳船平台和5 MW风力发电机组进行了研究。计算域包括空气和水，使用reynolds - average Navier-Stokes （RANS）方程和连续性方程进行建模，采用剪切应力输运（SST）湍流模型。给定风力机恒定转速，在风机区域采用滑动网格实现风力机的旋转。在风机、塔和浮船区域采用重叠网格，实现浮船系统的整体运动响应。在本研究中，提出了一种通过在月池内的自由表面上加入覆盖物来减小整个浮式风力涡轮机系统倾斜角的方法。结果表明，加顶盖能明显缓解浮动系统的偏差。但如果增加掩体，则抑制了月池的阻尼效应，使垂荡幅值和俯仰幅值均增大。

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

Ocean Engineering 工程技术-工程：大洋

CiteScore

7.30

自引率

34.00%

发文量

2379

审稿时长

8.1 months

期刊介绍： Ocean Engineering provides a medium for the publication of original research and development work in the field of ocean engineering. Ocean Engineering seeks papers in the following topics.