摘要
漂浮式光伏电站具有组件多和规模大的特点,对其流载荷的评估尚未有成熟方法。该文首先以风洞试验对缩尺的部分模型方阵风载荷的CFD计算进行精度验证,然后对170 m×170 m三维漂浮方阵在不同来流角度下所受流载荷进行了计算和分析,获得了流载荷的分布规律。结合典型工况下流载荷CFD的3D计算结果,验证了该文提出的2.5D方法模拟3D计算的合理性。大型漂浮方阵的流载荷研究可先计算2.5D流载荷,再通过3D计算得到的载荷分布规律推算出整个方阵的流载荷。在0.5 m/s流速以上,无量纲的流载荷系数与流速基本无关。
The floating PV power station has the characteristics of large number of components and massive scale,and the evaluation of its current load has not been matured.In this study,the accuracy of CFD calculation of the wind load of the reduced scale array is verified by wind tunnel test.The current loads of 170 m×170 m three-dimensional floating array are calculated and analyzed at different flow directions,and the distribution law of the current load is obtained.The rationality of the 2.5 D method proposed in this paper to simulate the 3 D calculation of CFD under typical working conditions is verified.The study on current load of large floating square array can first calculate the 2.5 d flow load,the current load distributions of the entire square array can be further deduced by the 3 D load distribution law.The dimensionless coefficient of current load can be considered independent of the velocity above 0.5 m/s.
作者
孔耀华
肖福勤
陈作钢
宋肖锋
吴昊
KONG Yao-hua;XIAO Fu-qin;CHEN Zuo-gang;SONG Xiao-feng;WU Hao(State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration(CISSE),Shanghai 200240,China;SUNGROW Power Supply Co,Ltd,Hefei 230088,China;Huainan Sunshine Floating Technology Co.,Ltd,Huainan 230089,China)
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2019年第2期218-223,共6页
Chinese Journal of Hydrodynamics
关键词
漂浮式光伏电站
漂浮方阵
流载荷
数值模拟
2.5D计算
floating PV power station
floating square array
current load
numerical simulation
2.5Dmethod
