实验流体力学2012，Vol.26Issue(6)：15-18,4.
缝道流动的脉动参数对多段翼型升力特性的影响
The influence of dynamic parameters of gap flow on lift characteristics of a multi-element airfoil
摘要
Abstract
The dynamic parameters of gap flow of a multi-element airfoil have significant effect on its lift characteristics. Using wind tunnel experiments, the authors compared the changes of lift coefficients of a multi-element airfoil (GAW-1) under conditions of acoustic excitation on/off. The experiments were conducted in NF-3 wind tunnel. The sound pressure level (SPL) of internal acoustic excitation was 60dB. The results showed that the lift coefficients of the airfoil were reduced when disturbance were appended. The most decrement of lift coefficient is -1. 8%. This paper confirms that the designers should study the dynamic characteristics of flow near the gap. It should be noticed that the sources of error in experiment data analysis should include scale and quality of test model and the back ground sound pressure level of the wind tunnel.关键词
多段翼型/升力特性/风洞实验/缝道流动/脉动参数Key words
multi-element airfoil/ lift coefficient/ wind tunnel experiment/ gap flow/ dynamic characteristics分类
航空航天引用本文复制引用
高永卫,朱奇亮,罗凯..缝道流动的脉动参数对多段翼型升力特性的影响[J].实验流体力学,2012,26(6):15-18,4.基金项目
国家自然科学基金资助项目(10972184) （10972184）
