船舶与海洋工程

多节漂浮式发电装置浮体破损进水的CFD模拟

  • 何坤达 ,
  • 高洪涛 ,
  • 丁帅 ,
  • 郭文杰 ,
  • 牛东
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  • (大连海事大学 a.?轮机工程学院;b.船舶与海洋工程学院,辽宁 大连 116026)
何坤达(1995-),男,博士生,E-mail: hekunda@dlmu.edu.cn

收稿日期: 2022-09-30

  修回日期: 2022-10-29

  网络出版日期: 2022-10-29

基金资助

辽宁省中央引导地方科技发展专项基金资助项目(2021JH6/10500153)

CFD simulation of water Intake of damaged multi-buoy wave energy converter

  • HE Kun-da ,
  • GAO Hong-tao ,
  • DING Shuai ,
  • GUO Wen-jie ,
  • NIU Dong
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  • (a.Marine Engineering College;b.Naval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian 116026, China)

Received date: 2022-09-30

  Revised date: 2022-10-29

  Online published: 2022-10-29

摘要

对于波浪能发电装置,海洋是一个十分恶劣的运行环境,往往面临极端风浪、电化学腐蚀和生物积垢等因素的不利影响,尤其是锈蚀和结构疲劳引起的应力破坏,均有可能导致装置浮体结构的破损进水,进而影响装置运行,甚至导致装置沉û。本文基于软件STARCCM+,建立多节漂浮式装置浮体破裂后内部进水过程模型,通过各浮体的响应功率和纵摇运动幅度来评估进水后的不利影响,从而探究该类装置的生存性和抗沉性。结果表明,四浮体装置的首节浮体进水不利影响最小,但相较正常工况,功率也下降了近50%。

本文引用格式

何坤达 , 高洪涛 , 丁帅 , 郭文杰 , 牛东 . 多节漂浮式发电装置浮体破损进水的CFD模拟[J]. 大连海事大学学报, 2022 , 48(4) : 120 -126 . DOI: 10.16411/j.cnki.issn1006-7736.2022.04.014

Abstract

 For wave energy converters, the sea is an awful running environment, the devices often face extreme wind and waves, electrochemical corrosion, and biofouling factors such as adverse effects, especially corrosion and its own structure fatigue caused by stress damage, which is likely to lead to the breakage of the buoy structure into the water, which affects the operation of devices, and even sink them. Based on the software STAR-CCM+, this study established a process model of internal water intake after the fracture of the buoy of the multi-buoy device. The adverse effects of water intake were evaluated through the response power and pitch motion amplitude of each buoy to explore the survivability and anti-sinking ability of this type of device. According to the results, the first buoy has the least adverse effect on the inflow. However, compared with the normal working condition, the power has also decreased by nearly 50%.

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