Simulation of a 5MW wind turbine in an atmospheric boundary layer
Simulation of a 5MW wind turbine in an atmospheric boundary layer
复制标题
大气边界层中 5MW 风力发电机的模拟
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
E. Krämer
中科院分区：
文献类型：
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作者：
K. Meister;T. Lutz;E. Krämer
本文介绍了一台5 MW风力涡轮机在非定常大气边界层中的分离涡模拟（DES）结果。本文中进行的评估重点关注涡轮机叶片载荷以及大气湍流和塔架对叶片载荷的影响。为此，分析了大气边界层对涡轮机位置的湍流输送。为了确定大气湍流对风力涡轮机的影响，评估叶片载荷谱，并与均匀入流的风力涡轮机模拟结果进行比较。此外，还讨论了不同频率范围和塔架对叶片载荷的影响。最后，分析了三种不同径向位置下的法向力系数谱，并给出了塔架和大气湍流的影响。
This article presents detached eddy simulation (DES) results of a 5MW wind turbine in an unsteady atmospheric boundary layer. The evaluation performed in this article focuses on turbine blade loads as well as on the influence of atmospheric turbulence and tower on blade loads. Therefore, the turbulence transport of the atmospheric boundary layer to the turbine position is analyzed. To determine the influence of atmospheric turbulence on wind turbines the blade load spectrum is evaluated and compared to wind turbine simulation results with uniform inflow. Moreover, the influences of different frequency regimes and the tower on the blade loads are discussed. Finally, the normal force coefficient spectrum is analyzed at three different radial positions and the influence of tower and atmospheric turbulence is shown.