Investigations into the Interaction of a Wind Turbine with Atmospheric Turbulence in Complex Terrain
Investigations into the Interaction of a Wind Turbine with Atmospheric Turbulence in Complex Terrain
复制标题
复杂地形中风力涡轮机与大气湍流相互作用的研究
DOI：
--
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
T. Lutz
中科院分区：
文献类型：
--
作者：
C. Schulz;L. Klein;P. Weihing;T. Lutz
本文讨论了延迟分离涡模拟（DES）的一般2.4兆瓦风力涡轮机在复杂地形的网站面临的湍流大气边界层。基于在复杂地形现场获得的测量数据生成边界层。此外，数据准备的过程以及数值设置进行了说明。计算结果显示了复杂地形对流场的影响，并估计了地形对流场的影响对涡轮机性能的影响。然后，对涡轮机在平坦复杂地形下面对大气入流进行了数值模拟。与平坦地形相比，在复杂地形中，由地形引起的加速导致的负载增加以及涡轮机的功率谱的明显变化变得可见。这一发现与以前的估计一致。此外，局部地形坡度引起的倾斜入流的影响可以在载荷分布与方位角的关系中看到。
This paper deals with the Delayed-Detached-Eddy-Simulations (DES) of a generic 2.4 MW wind turbine in a complex terrain site facing a turbulent atmospheric boundary layer. The boundary layer is generated based on measurement data derived at the complex terrain site. Further, the process of data preparation as well as the numerical setup are described. In the results the impact of complex terrain on the flow field is shown and estimations on the influence on the turbine performance are made. Afterwards, simulations of the turbine facing atmospheric inflow in flat and complex terrain are presented. An increase of loads resulting from a speed-up caused by the terrain as well as a clear change in the power spectrum of the turbine become visible in complex terrain compared to flat terrain. This finding is in agreement with the estimations derived previously. Moreover, the impact of inclined inflow caused by the local terrain slope can be seen in the load distribution vs. the azimuth angle, amongst others.