Computational Aerodynamic Analysis of Offshore Upwind and Downwind Turbines
Computational Aerodynamic Analysis of Offshore Upwind and Downwind Turbines
复制标题
海上迎风和顺风涡轮机的计算空气动力分析
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
A. Afjeh
中科院分区：
文献类型：
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作者：
Qiuying Zhao;C. Sheng;A. Afjeh
使用高保真计算流体动力学 (CFD) 分析研究模型 NREL 5 MW 海上水平轴风力涡轮机 (HAWT) 的空气动力相互作用。考虑四种风力涡轮机配置；逆风和顺风三叶片以及逆风和顺风两叶片配置，可在 12.1 和 16 RPM 两种不同的转子速度下运行。在本研究中，详细评估了稳定和非稳定的气动载荷，例如转子扭矩、叶片轮毂弯矩和塔架的基础塔架弯矩，以对不同风力涡轮机配置进行总体评估。分析了转子和塔架之间的空气动力学相互作用，包括下游转子尾流的发展。计算分析可深入了解逆风和顺风、两叶片和三叶片水平轴风力涡轮机的空气动力学性能。
Aerodynamic interactions of the model NREL 5 MW offshore horizontal axis wind turbines (HAWT) are investigated using a high-fidelity computational fluid dynamics (CFD) analysis. Four wind turbine configurations are considered; three-bladed upwind and downwind and two-bladed upwind and downwind configurations, which operate at two different rotor speeds of 12.1 and 16 RPM. In the present study, both steady and unsteady aerodynamic loads, such as the rotor torque, blade hub bending moment, and base the tower bending moment of the tower, are evaluated in detail to provide overall assessment of different wind turbine configurations. Aerodynamic interactions between the rotor and tower are analyzed, including the rotor wake development downstream. The computational analysis provides insight into aerodynamic performance of the upwind and downwind, two- and three-bladed horizontal axis wind turbines.