摘要
通过数值仿真方法研究了一种前缘附加旋转圆柱的NACA0015翼型气动性能,分析了圆柱与主体间间隙大小及圆心距离前缘位置两个主要参数对翼型升阻比的影响,获得了一组具有最佳气动特性的旋转圆柱参数,并利用此翼型建立了二维基于Magnus效应的H型垂直轴风力机模型。基于滑移网格技术,选用Spalart-Allmaras方程湍流模型和基于压力隐式的SIMPLE算法对风轮流场进行非定常数值模拟研究。制作了风机模型并进行测试,验证了前缘旋转圆柱对风力机性能有一定的提升作用。
Numerical simulations are conducted on the NACA0015 airfoil with rotating cylinders on the leading edge of the airfoil. Lift-drag ratio is analyzed,which is affected by two major parameters:the gap between the cylinder and the airfoil and the central position with respect to leading edge. A set of parameters of rotating cylindrical with the best aerodynamic characteristics then can be obtained,and a 2 D compact H-type model of vertical axis wind turbine based on the Magnus effect is established by using this new airfoil. At last sliding mesh technology,K RNG-e turbulence model and SIMPLE algorithm are applied in unsteady values simulation. In experiment section,a model of turbine with rotating cylinder is tested,which will verify the effect of the leading-edge rotating cylinder.
作者
曹阳
戚嘉伟
吴国庆
李锦义
CAO Yang;QI Jia-wei;WU Guo-qing;LI Jin-yi(School of Mechanical Engineering,Nantong University,Jiangsu Nantong226019,China;Engineering Research Center of Wind Energy Application,Jiangsu Nantong226019,China)
出处
《机械设计与制造》
北大核心
2020年第1期228-232,共5页
Machinery Design & Manufacture
基金
国家自然科学基金资助项目（51376096）
江苏省研究生科研与实践创新计划项目（KYCX17-1914）
关键词
旋转圆柱
间隙
圆心位置
垂直轴风力机
CFD
Rotating Cylindrical
Gap
Central Position
Vertical Axis Wind Turbine
CFD
