垂直轴风力机叶片与圆柱形塔架相互干涉的数值模拟

为了研究垂直轴风力机叶片与中心圆柱形塔架之间的相互干涉,以Sandia型达里厄风力机为研究对象,建立二维模型。基于Spalart-Allmaras湍流模型,对三叶片Sandia型达里厄风力机在四个不同位置,进行了多组工况的数值模拟。研究分析了叶片与圆形塔架相互干涉的二维物理特征、叶片吸力面负压面积大小的变化、叶片表面所受压力规律性的变化与影响圆柱塔架的升力和阻力系数的原因。研究结果对于揭示垂直轴风力机风轮尾迹的物理机理,优化风力机结构,增加风力机的气动弹性稳定性和减少噪声辐射有重要的理论价值。

Interference between the blade and the cylindrical tower vertical axis wind turbine

In order to mutual interference between the study of vertical axis wind turbine blade and the center of the cylindrical tower, this paper to Sandia Darrieus wind turbine as the research object, the establishment of two-dimensional model, spalart allmaras turbulence model based on, on a three bladed Sandia Darrieus wind turbine in four different settings, numerical simulations are carried out in many cases, research and analysis, two-dimensional physical characteristics of blade and round tower interfere with each other, the blade suction surface pressure area the size of the change, the blade surface pressure distribution law of the change and influence of cylindrical tower of lift and drag coefficients. Results to reveal the physical mechanism of the vertical axis wind turbine wake, optimize the structure of wind turbine, wind turbine gas aeroelastic stability and reduce noise radiation has important theoretical value.