流体机械

2013, v.41;No.496(10) 36-40

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基于滑移网格的H型垂直轴动态气动特性分析
Analysis of Dynamic Aerodynamic Performance for H-type VAWT Based on Sliding Mesh Technique

高伟;李春;叶舟;聂佳斌;
GAO Wei;LI Chun;YE Zhou;NIE Jia-bin;University of Shanghai for Science and technology;Technology Research Institute,China Datang Group Creative Wind Energy Co.Ltd.;

摘要(Abstract):

垂直轴风力机的气动特性非常复杂,采用工程气动模型会有较大误差,因而本文针对NACA0012翼型,基于滑移网格技术,并选用Spalart-Allmaras方程湍流模型和基于压力的Simple算法对H行垂直轴风轮流场进行瞬态CFD计算,整个计算结果通过了严格的网格数和计算区域验证。同时,本文通过对流场的分析,获得了风力机的动态失速与升阻力系数等气动特性,计算结果对H轴风力机的设计与开发具有一定理论价值。
the aerodynamic performance for vertical axis wind turbine(VAWT) is quite complicated.Use the engineering algorithm to estimate its performance will generate huge residuals.In this paper,the kinds of NACA0012 airfoil have been simulated in a CFD method.The model's transient simulation is finished on the basis of sliding mesh technique and in association with the Spalart-Allmaras turbulence model and pressure based SIMPLE algorithm.Strict verification has been adopted to ensure the simulation is grid independence.Meanwhile,the analysis on the flow field concluded with several aerodynamic features such as dynamic stall and the variation on coefficient of lift or coefficient of drug.The paper has its theoretical value for the design and development of H-type VAWT.

关键词(KeyWords): 垂直轴风轮;动态失速;气动特性;计算流体力学
vertical axis wind turbine(VAWT);dynamic stall;aerodynamic performance;CFD

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基金项目(Foundation): 国家自然科学基金资助项目(E511176129);; 教育部高等学校博士学科点专项科研基金(博导类)(20123120110008);; 上海市教委科研创新(重点)项目(13ZZ120)

作者(Author): 高伟;李春;叶舟;聂佳斌;
GAO Wei;LI Chun;YE Zhou;NIE Jia-bin;University of Shanghai for Science and technology;Technology Research Institute,China Datang Group Creative Wind Energy Co.Ltd.;

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