流体机械2011，Vol.39Issue(12)：5-8,4,5.DOI:10.3969/j.issn.1005-0329.2011.12.002
翼型厚度对风力机叶片翼型气动特性的影响
Effects of Airfoil Thickness on Airfoil Aerodynamic Characteristics
王菲 1吕剑虹 1王刚2
作者信息
- 1. 东南大学,江苏南京210096
- 2. 大唐长春第二热电有限责任公司,吉林长春132231
- 折叠
摘要
Abstract
The theoretical model of predicting airfoil aerodynamic characteristics was established which then was numerical calculated Effects of airfoil thickness on airfoil aerodynamic characteristics were studied. Effect laws of airfoil thickness on lift coefficient , drag coefficient, lift - drag ratio and flow field around airfoil, pressure coefficient were given. The results show that, the effect of airfoil thickness is obvious to the aerodynamic characteristics. At small angle of attack range, the airfoil of smaller thickness leads to the larger lift - drag ratio. At larger angle of attack range, increasing airfoil thickness can improve lift - drag ratio and extend large lift - drag ratio range. Also the separation point of thicker airfoil moves forward slower and the range of vortex distribution is smaller.关键词
翼型/气动特性/厚度/流场/压力系数Key words
airfoil/ aerodynamic characteristics/ thickness/ flow field/ pressure coefficient分类
机械制造引用本文复制引用
王菲,吕剑虹,王刚..翼型厚度对风力机叶片翼型气动特性的影响[J].流体机械,2011,39(12):5-8,4,5.
