流体机械Issue(3)：37-42,6.DOI:10.3969/j.issn.1005-0329.2015.03.008
襟翼相对长度对翼型流场结构影响
Relative Length of Flap Effect on Airfoil Flow Field Structure
摘要
Abstract
Based on symmetrical airfoil NACA0018 airfoil,using Fluent software numerical simulation method comparative study the relative length and the wing flap seam relative width of airfoil flow field structure and the influence of the resistance proper-ties;The article selected the flap relative length are 0.2,0.3 and 0.4 and slot relative width of 1.0%,emphatically analyzed the flaps relative length effect on airfoil aerodynamic performance The numerical results show that:due to the impact of the main vor-tex development and change around the airfoil by flap,not only to improve the airfoil stall characteristics,but also improve the aer-odynamic performance of airfoil.Flap airfoil stall Angle of attack within the scope of the study were greater than the benchmark airfoils,when the angle of attack is less than the stall angle of attack,the wing flap type of lift coefficient are less than the bench-mark airfoils,drag coefficient were higher than benchmark airfoils,but the maximum lift coefficient are higher than the benchmark airfoil;as the relative length increases,flap airfoil critical angle of attack decreases,lift coefficient is close to the airfoil stall angle of attack,its value to present first increases then decreases;flap length at the same time,with the increase of relative width of the slot,the lift coefficient decreases.关键词
襟翼/翼型/相对长度/气动性能Key words
flap/airfoil/relative length/aerodynamic performance分类
机械制造引用本文复制引用
祖红亚,李春,陆云凤,叶舟,刘天亮..襟翼相对长度对翼型流场结构影响[J].流体机械,2015,(3):37-42,6.基金项目
国家自然基金资助项目（E51176129）；上海市研究生创新基金项目（JWCXSL1302）；上海市育委员会科研创新（重点）资助项目（13ZZ120）；上海市教育委员会科研创新项目（13YZ066）；教育部高等学校博士学科点专项科研基金（博导类）资助项目 （）
