翼型与弦长对直线翼垂直轴风力机起动性能影响的数值模拟  

Effects of Blade Airfoils and Chord Lengths on the Starting Performance of Straight-bladed Vertical Axis Wind Turbines

作　　者：郭文峰[1,2] 佟国强 张影微 Wen-feng Guo;Guo-qiang Tong;Ying-wei Zhang(College of Engineering,Northeast Agricultural University;Key Laboratory of Wind Energy and Solar Energy Technology,Inner Mongolia University of Technology)

机构地区：[1]东北农业大学工程学院 [2]风能太阳能利用技术教育部重点实验室(内蒙古工业大学)

出　　处：《风机技术》2023年第4期12-17,共6页Chinese Journal of Turbomachinery

基　　金：风能太阳能利用技术教育部重点实验室开放基金(2020ZD03)。

摘　　要：为了探究翼型与弦长对直线翼垂直轴风力机起动性能的影响,选择了NACA0018、NACA0026、S809以及S1046四种翼型,40mm、60mm和80mm三种叶片弦长进行研究,其中S809翼型采用正装和反装两种方式。对不同条件下风力机的静态力矩性能以及转速性能进行数值模拟研究。静态力矩性能研究表明,随着叶片弦长的增大,风力机平均静态力矩增大。通过对比不同翼型的结果发现:NACA0026翼型平均静态力矩系数最大且达到稳定时间最短,S809翼型起动性能最差且反装时平均静态力矩系数最小,SI046翼型稳定转速最高。转速性能研究表明,叶片弦长的增大会增大叶片的质量,进而增大转动惯量,使得风力机的起动性能降低。本研究将对直线翼垂直轴风力机的设计提供有益的参考。The effects of blade airfoil and chord length on the starting performance of Straight-Bladed Vertical Axis Wind Turbines(SB-VAWTs)were investigated.The airfoils of NACA0018,NACA0026,S809 and S1046 with the chord lengths of 40 mm,60mm and 80mm were selected to simulate the static torque and rotational performance of SB-VAWTs under different conditions.The airfoil S809 is installed in both forward and back ways.The research findings show that the average static torque of the wind turbine increased along with blade chord length increasing,the average static torque coefficient of NACA0026 airfoil was highest,and the S809 airfoil was lowest.The starting performance of SB-VAWTs reduced with the blade chord length increasing the blade weight increasing,and then the rotational inertia increasing.The results show that the time length for NACA0026 airfoil,from starting rotation to stability,was shortest.The starting performance of S809 airfoil was worst and the average static moment cofficient was minimum when backwardly installed.And the stable rotation speed of S1046 airfoil was highest.This study provides references for design of SB-VAWTs.

关 键 词：直线翼垂直轴风力机 数值模拟 翼型 起动性能 转速性能 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]