基于格尼襟翼的多机组垂直轴风力机性能增效研究  

Research on Performance Enhancement of Farms Vertical Axis Wind Turbine Based on Gurney Flap

作　　者：倪露露 缪维跑 李春[1,2] 刘青松 张万福 NI Lulu;MIAO Weipao;LI Chun;LIU Qingsong;ZHANG Wanfu(School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering,Shanghai 200093,China)

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]上海市动力工程多相流动与传热重点实验室,上海200093

出　　处：《动力工程学报》2021年第5期411-419,共9页Journal of Chinese Society of Power Engineering

基　　金：国家自然科学基金资助项目(51976131,51676131);上海“科技创新行动计划”地方院校能力建设资助项目(19060502200)。

摘　　要：为探究格尼襟翼对垂直轴风力机气动性能的影响,结合TSST湍流模型对直线翼垂直轴风力机展开数值模拟研究。结果表明:低尖速比下,格尼襟翼可显著提升垂直轴风力机的气动性能,但在高尖速比下会降低气动性能;垂直轴风力机组间流体速度随尖速比的增大而增加,此高速流体可有效提升机组风能利用系数;因上游风力机组间流体加速作用,下游风力机在各尖速比下的气动性能均高于原始单风力机,且当尖速比为2.72时,下游风力机最大平均力矩比原始单风力机提高20.3%;上游风力机组安装格尼襟翼可有效提高机组间流体加速效果,使下游风力机迎风速度更高,尖速比为2.51时,格尼襟翼风力机组的下游风力机平均力矩比原始单风力机和原始格尼襟翼风力机分别提高36.5%和24%。In order to investigate the effect of Gurney flaps on the aerodynamic performance of vertical axis wind turbines, a numerical simulation on vertical axis wind turbines was carried out in combination with TSST turbulence model. Results show that the Gurney flap can significantly improve the aerodynamic performance of vertical axis wind turbines at low tip speed ratios, but reduce the aerodynamic efficiency at high tip speed ratios. The fluid velocity between vertical axis wind turbines increases with the increase of tip speed ratio. High-speed fluid can effectively improve wind energy utilization rate, The aerodynamic performance of downstream wind turbine at each tip speed ratio is higher than that of a single wind turbine due to the fluid acceleration between the units, and when the tip speed ratio is 2.72, the maximum average torque of the downstream wind turbine 20.3% higher than that of the original single wind turbine. The installation of Gurney flaps on the upstream wind turbines can effectively improve the fluid acceleration effect between the wind turbines and make the downstream wind turbines have higher upwind speeds. When the tip speed ratio is 2.51, the average torque of the downstream wind turbines of the Gurney flap is 36.5% and 24% higher than that of the original single wind turbine and the Gurney flap wind turbine respectively.

关 键 词：垂直轴风力机 格尼襟翼 流动控制 气动性能 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]