Simulations of the Fluid Flow around a Rotating Vertical Axis Wind Turbine
Simulations of the Fluid Flow around a Rotating Vertical Axis Wind Turbine
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DOI：
10.1260/030952407781998819
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发表时间：
2007-05
期刊：
影响因子：
1.5
通讯作者：
O. Guerri;A. Sakout;K. Bouhadef
中科院分区：
文献类型：
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作者：
O. Guerri;A. Sakout;K. Bouhadef
采用时间精确的Reynolds平均Navier Stokes （RANS）求解器对小型旋转垂直轴风力机的流体流动进行了数值模拟。采用移动网格技术对旋转风力机进行仿真。然后在ALE中表示RANS方程。所有的计算都是在二维不可压缩的完全湍流中进行的。湍流是用Menter的SST k/ω模型模拟的。通过对叶片表面的压力和剪切应力进行积分，得到叶片的力和扭矩。预期的风力涡轮机输出是在给定转速下确定的。将所得的功率系数与应用多流管理论得到的功率系数进行了比较。
Numerical simulations of the fluid flow around a small rotating vertical axis wind turbine are performed using a time accurate Reynolds Averaged Navier Stokes (RANS) solver. A moving mesh technique is applied for the simulation of the rotating wind turbine. The RANS equations are then formulated in ALE. All computations are performed assuming 2D incompressible fully turbulent flow. Turbulence is modelled by the SST k/ω model of Menter. Blade forces and torque are obtained from the solution of the RANS equations by integrating the pressure and shear stress over the blade surface. The expected wind turbine output is determined at given rotational speeds. The resulting power coefficients are compared to that obtained by applying a multiple stream tube theory.