期刊
RENEWABLE ENERGY
卷 161, 期 -, 页码 1359-1367出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2020.07.138
关键词
Aerodynamic performance; Blade profile; Finite volume method; Numerical simulation; Wind turbines
Two-dimensional incompressible flow around a NACA 63-415 airfoil, which is encountered in engineering applications as a typical wind-turbine-blade profile, is investigated computationally. Aerodynamic loads and the flow mechanism over this particular blade profile are examined in detail to determine the optimum angle of attack. Simulations are performed in the range of the typical operating conditions encountered for commercial-scale wind turbines with Reynolds numbers 10(5) <= Re <= 3 x 10(6) and for angles of attack 0 degrees <= alpha <= 20 degrees. The turbulent flow was modelled by means of the Spalart-Allmaras and the Shear-Stress Transport (SST) k-omega turbulence models to provide a direct comparison between data obtained with different models. The results obtained are compared to numerical and experimental data available in literature for validation. The aerodynamic performance analysis reveals that the optimum angle of attack for this blade profile is alpha = 6 degrees for Re <= 10(6) and alpha = 7 degrees for Re >= 1.6 x 10(6). (C) 2020 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据