Unsteady aerodynamics of offshore floating wind turbines in platform pitching motion using vortex lattice method
Unsteady aerodynamics of offshore floating wind turbines in platform pitching motion using vortex lattice method
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DOI：
10.1016/j.renene.2013.09.009
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发表时间：
2012-11
期刊：
影响因子：
8.7
通讯作者：
Minu Jeon;Seungmin Lee;Soogab Lee
中科院分区：
文献类型：
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作者：
Minu Jeon;Seungmin Lee;Soogab Lee
由于海上漂浮式风力涡轮机（OFWT）的流动状态与陆上固定式风力涡轮机的流动状态不同，采用传统的叶素动量理论（BEMT）对涡轮机的气动载荷预测是否准确值得怀疑。本文的目的是显示使用涡格法（VLM）的气动载荷预测的特点。鹫津的实验数据，这是在一个类似的流动状态下的浮动风力涡轮机，用于验证。预测结果与实验结果相比较，有较好的一致性。为了确定浮动风力涡轮机的非定常空气动力学，NREL 5 MW风力涡轮机模型用于浮动风力涡轮机的模拟。这些结果表明，湍流尾流状态（TWS），这是不希望的条件，不能预测的BEMT模拟，出现时，浮动风力涡轮机在低速流入条件下操作。此外，当浮式平台经历向上俯仰运动时，转子经历TWS。
As the flow states of an offshore floating wind turbine (OFWT) differ from those of an onshore fixed wind turbine, it is questionable as to whether the aerodynamic load prediction of a turbine using conventional blade element momentum theory (BEMT) is accurate. The aim of this paper is to show the characteristics of aerodynamic load predictions using the vortex lattice method (VLM). Washizu's experimental data, which was measured under a similar flow state of a floating wind turbine, is used for validation. The prediction shows good results compared to those of an experiment. To determine the unsteady aerodynamics of a floating wind turbine, the NREL 5 MW wind turbine model is used for the simulation of a floating wind turbine. These results show that a turbulent wake state (TWS), which is undesirable condition and cannot predicted in BEMT simulation, arises when a floating wind turbine is operated at a low-speed inflow condition. In addition, the rotor experiences a TWS when the floating platform undergoes upward pitching motion.