摘要
提出利用升阻复合启动结构来改善直线翼垂直轴风力机气动特性,该启动结构由半椭圆形阻力叶片和升力小翼构成。基于RNG k-ε模型,对纯升力型、升阻复合型和新型复合风力机的气动特性进行二维数值研究,并进行对比分析。研究表明：增加小翼后,新型复合风力机的最大力矩系数较升阻复合型风力机提升25%,最大功率系数提升46%;静态启动力矩较升阻复合型提升11.2%,较纯升力型提升294%;小翼可削弱内置阻力叶片对升力叶片的不利影响。
The lift-drag starter consisting semielliptical drag blade and small lift airfoil was presented to improve the aerodynamic performance of straight- bladed vertical axis wind turbine （SB-VAWT）. Twodimensional numerical study of aerodynamic characteristics of SB-VAWT, drag starter combined VAWT and lift-drag starter combined VAWT, and comparative analysis were carried out based on RNG k-ε model. The results show that the maximum torque coefficient, maximum power coefficient, and the static starting torque of lift-drag starter combined VAWT increase 25% , 46% and 11.2% than those of drag starter combined VAWT, respectively, and the static starting torque improves 294% than that of SB-VAWT. The small airfoil can weaken the adverse effect of the interior drag starter on the lift-type blade.
作者
冯放
李岩
赵守阳
曲春明
白悦荻
Feng Fang;Li Yan;Zhao Shouyang;Qu Chunming;Bai Yuedi(College of Science, Northeast Agricultural University , Harbin 150030, China;Heilongjiang Provincial Key Laboratory of Technology and Equipment for the Utilization of Agricultural Renewable Resources in Cold Region, Northeast Agricultural University Harbin 150030, China;College of Engincering , Northeast Agricultural University, Harbin 150030, China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2018年第4期1052-1059,共8页
Acta Energiae Solaris Sinica
基金
黑龙江省教育厅科学技术研究项目(12541012)
关键词
风力机
升阻复合启动结构
数值模拟
流场
wind turbines
lift-drag structure
numerical simulation
flow fields
