摘要
应用FLUENT软件求解二维非定常不可压N-S方程和SSTk-ω湍流模型,采用PISO速度压力修正算法,结合滑动网格技术,模拟垂直轴风力机(VAWT)的流场特性。获得并分析了不同时刻的速度场、压力场分布,风轮叶片受力和转矩的变化规律。结果表明绕流场模拟能有效地反应风力机旋转过程的流场状况,可为垂直轴风力机的工程设计提供理论依据。
Numerical simulations of the fluid flow around a small rotating vertical axis wind turbine are performed using a 2D unsteady incompressible N-S equation and the SST k-ω is used for modelling turbulence modelling, the PISO algorithm is adopted for the solution of the pressure-velocity coupled equation, and the moving mesh technique is adopted for the numerical simulation for solving the rotating flow. Contours of velocity magnitude and pressure, the blade force, and the torque is obtained and analyzed. Conclusion of the numerical simulation give the essence of the rotated flow of vertical axis wind turbine, and can provide the theory reference for engineering design.
出处
《现代制造工程》
CSCD
北大核心
2009年第8期56-58,77,共4页
Modern Manufacturing Engineering
关键词
雷诺时均方程
垂直轴风力机
滑动网格
SST
k-ω湍流模型
Reynolds averaged navier stokes equations
vertical axis wind turbine
moving mesh
SST k-ω turbulent model
