摘要
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 algo- rithm 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 simu- lation is grid independence. Meanwhile, the analysis on the flow field concluded with several aerodynamic features such as dy- namic stall and the variation on coefficient of lift or coefficient of drug. The paper has its theoretical value for the design and de- velopment of H-type VAWT.
出处
《流体机械》
CSCD
北大核心
2013年第10期36-40,共5页
Fluid Machinery
基金
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)
关键词
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
