多节漂浮式发电装置浮体破损进水的CFD模拟  

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

作　　者：何坤达 高洪涛 丁帅 郭文杰 牛东 HE Kun-da;GAO Hong-tao;DING Shuai;GUO Wen-jie;NIU Dong(Marine Engineering College,Dalian Maritime University,Dalian 116026,China;Naval Architecture and Ocean Engineering College,Dalian Maritime University,Dalian 116026,China)

机构地区：[1]大连海事大学轮机工程学院,辽宁大连116026 [2]大连海事大学船舶与海洋工程学院,辽宁大连116026

出　　处：《大连海事大学学报》2022年第4期120-126,共7页Journal of Dalian Maritime University

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

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,甚至导致装置沉没。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%。For wave energy power generation devices, the ocean is a very harsh operating environment, often facing the adverse effects of extreme wind and waves, electrochemical corrosion, biological fouling and other factors, especially the stress damage caused by corrosion and structural fatigue, which may lead to the damage of the floating structure of the device and water inflow, thus affecting the operation of the device, and even causing the device to sink. Based on the software STAR-CCM+, the paper established a model for the internal water inflow process of a multi section floating device after the floating body breaks, and evaluated the adverse effects of water inflow by the response power and pitch motion amplitude of each floating body, so as to explore the survivability and anti-sinking performance of this type of device. The results show that the first floating body of the four floating body unit has the least adverse effect, but the power is also reduced by nearly 50% compared with the normal working condition.

关 键 词：波浪能发电装置 破损进水 生存性 CFD模拟 

分 类 号：P743.2[天文地球—海洋科学]