摘要
以马格努斯翼型为研究对象,采用数值分析方法,研究低雷诺数条件下马格努斯效应关键参数(周速比、间隙、半径及位置)对翼型边界层流动及升阻性能的影响规律;基于拉丁超立方和Kriging模型,建立周速比、半径、间隙和位置多因素与翼型升阻特性的隐型非线性耦合响应关系模型,量化马格努斯效应影响;采用遗传算法全局寻优获得优化马格努斯翼型。结果表明,马格努斯效应对低雷诺数翼型升阻气动特性影响显著,半径对翼型升阻比影响最大,周速比影响稍弱,位置影响最小;升阻比与周速比正相关,与半径大小、间隙及位置负相关;周速比为1.33、间隙为0.003C、半径为0.046C时翼型最大升阻比较基准翼型提高40.31%,失速攻角由10°延迟到14°。
This paper investigates the aerodynamic performance of the wind turbine airfoil with Magnus leading circle under low Reynolds number condition.The influences of the critical parameters such as the velocity ratio,clearance,radius and location on the boundary flow and lift drag performance are analyzed by numerical method.Based on the Latin hypercube and Kriging model,an implicit non-linear response model is established to quantify the influence of Magnus effect.The optimized Magnus airfoil is obtained by employing genetic algorithm.Results show that Magnus effect has a significant effect on aerodynamic characteristics of wind turbine airfoils at low Reynolds number.The radius has a greatest influence on lift-drag ratio,the effect of the velocity ratio is slightly weaker,and the effect of location is the smallest.The lift-to-drag ratio is positively correlated with velocity ratio and negatively correlated with radius and clearance and location.Compared with the baseline airfoil,the maximum lift-drag ratio of the optimized Magnus airfoil is increased by 40.31%with a velocity ratio of 1.33,a clearance of 0.003 C,and a radius of 0.046 C.The stall angle is delayed from 10 degree to 14 degree.
作者
唐新姿
陆鑫宇
王效禹
袁可人
Tang Xinzi;Lu Xinyu;Wang Xiaoyu;Yuan Keren(School of Mechanical Engineering,Xiangtan University,Xiangtan 411105,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2021年第6期265-271,共7页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51305377,51475404)
教育部留学回国人员科研启动基金(教外司留[2015]1098号)。
关键词
风力机
翼型
升阻比
马格努斯效应
低雷诺数
wind turbine
airfoil
lift-to-drag ratio
Magnus effect
low Reynolds number
