摘要
针对设计垂直轴风力机翼型时普遍将俯仰角(θ_(p))设定为固定值,导致不能很好地发挥翼型的气动性能的问题,文章首先提出了一种考虑可变θ_(p)的垂直轴风力机设计方法,并将其应用于翼型优化;然后,基于制动圆柱理论不断迭代计算其功率系数(C_p),以极大功率系数直接作为目标函数,利用遗传算法耦合RFOIL软件优化翼型廓线与θ_(p)分布;最后,优化得到垂直轴风力机新翼型VAWT250。与参考翼型AIR001相比,无论是光滑条件,还是粗糙条件,新翼型的气动性能具有明显提升,尤其是粗糙条件,其最大升力系数与升阻比分别提升了16.1%和17.1%;在粗糙条件下,考虑俯仰角时,风力机的最大C_(p)提高了6.81%。该结果对垂直轴风力机翼型的优化设计具有一定的指导意义。
The pitch Angle is generally set to a fixed value in the design of vertical axis wind airfoil,which leads to the problem that the aerodynamic performance of the airfoil can't be fully utilized.In this paper,a design method of vertical axis wind turbine considering variable pitch Angle is proposed and applied to airfoil optimization.Then,based on the braking cylinder theory,the power coefficient is iteratively calculated,and the maximum power coefficient is directly taken as the objective function,and the profile and pitch Angle distribution are optimized by using genetic algorithm coupled with RFOIL software.Finally,the new airfoil VAWT250 of vertical axis wind turbine is optimized.Compared with the reference airfoil AIR001,the optimization results show that the aerodynamic performance of the new airfoil is significantly improved under both smooth and rough conditions,especially under rough conditions,the maximum lift coefficient and lift-drag ratio are increased by 16.1%and 17.1%respectively.Under rough conditions,the maximum power coefficient of the wind turbine is increased by 6.81%considering the pitch Angle.The results have a certain guiding significance for the optimal design of vertical axis wind turbine airfoil.
作者
印四华
朱成就
莫抒志
张明康
汪泉
陈戈
Yin Sihua;Zhu Chengjiu;Mo Shuzhi;Zhang Mingkang;Wang Quan;Chen Ce(School of Mechanical and Energy Engineering,Guangdong Ocean University,Yangjiang 529500,China;Foshan Nanhai Guangdong Technology University CNC Equipment Cooperative Innovation Institute,Foshan 528225,China;School of Mechanical Engineering,Hubei University of Technology,Wuhan 430068,China;School of Mechanical Engineering,Guangdong Ocean University,Zhanjiang 524088,China)
出处
《可再生能源》
北大核心
2025年第1期54-60,共7页
Renewable Energy Resources
基金
广东海洋大学科研启动经费资助项目(360302022202)
湛江市科技计划项目(2024B01062)
国家自然科学基金面上项目(51975190)。
关键词
垂直轴风力机
翼型
俯仰角
制动圆柱理论
功率系数
vertical axis wind turbine
airfoil
pitch angle
brake cylinder theory
power factor
作者简介
印四华(1983-),男,博士,讲师,研究方向为智能制造、风力发电机智能运维与优化。E-mail:yinsihua@gdou.edu.cn;通信作者:陈戈(1989-),男,博士,讲师,研究方向为数字微流控、风力发电机的空气动力学性能。E-mail:gechen@gdou.edu.cn。
