边界层吸气对垂直轴风力机气动特性的影响  

Influence of Boundary Layer Suction on Aerodynamic Characteristics of Vertical Axis Wind Turbine

作　　者：俞洪静 王培麟 李春[1] 岳敏楠 YU Hongjing;WANG Peilin;LI Chun;YUE Minnan(School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai,China,200093)

机构地区：[1]上海理工大学能源与动力工程学院,上海200093

出　　处：《热能动力工程》2025年第1期111-120,共10页Journal of Engineering for Thermal Energy and Power

基　　金：国家自然科学基金资助项目(52375193,52376204,52106262)。

摘　　要：针对垂直轴风力机运行过程中存在显著流动分离现象,对叶片边界层施加吸气控制以改善其气动性能。为真实反映实际流体属性及尾涡流场,基于计算流体动力学方法,采用高精度三维模拟,对比分析了不同吸气控制策略下垂直轴风力机的气动性能和流场特性。结果表明:边界层吸气可增强边界层抗逆压梯度能力,令前缘流体在大攻角下依旧附着,延迟流动分离,从而有效提升垂直轴风力机气动特性;内侧吸气控制在各尖速比下使风能利用系数平均提升78.53%;采用策略3可大幅提升迎风区叶片转矩,提升29.46%。Aiming at the significant flow separation phenomenon during the operation of vertical axis wind turbine(VAWT),the suction control was applied to the blade boundary layer to improve its aerodynamic performance.In order to truly reflect the actual fluid properties and the wake vortex field,based on the computational fluid dynamics(CFD)method,the aerodynamic performance and flow field characteristics of the VAWT under different suction control strategies were compared and analyzed by using high-preci-sion three-dimensional simulation.The results show that the boundary layer suction can enhance the abili-ty of the boundary layer to resist the adverse pressure gradient,so that the leading edge fluid is still atta-ched at a large angle of attack,and the flow separation is delayed,thereby effectively improving the aero-dynamic characteristics of the VAWT.The inner suction control increases the wind energy utilization co-efficient by 78.53%on average at each tip speed ratio.The blade torque in the windward area can be in-creased by 29.46%under strategy 3.

关 键 词：垂直轴风力机 计算流体动力学 流动分离 边界层吸气 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]