Experimental Research on Control Surface Flow Separation Control and Lift Enhancement Mechanism by Leading Edge Blowing
The wind tunnel experimental research on the flow separation control and lift enhancement mechanism of control surface by leading edge blowing is performed in D4 wind tunnel at Beihang University. The evolvement course of flow field with the effect of blowing is depicted, and the improvement of aerodynamic performance of control surface is also analyzed. It is shown from the results that energy is directly sent into the boundary layer by the leading edge blowing. With the increase of blowing momentum coefficient, the separation area shrinks to the trailing edge, and the flow field maintains attached after the separation is completely removed. The circulation of airfoil is increased as a result of blowing, and not only the lift of control surface is enhanced, but also the drag is reduced.
leading edge blowing separation control lift enhancement mechanism
Deng Xueying Wu Peng Wang Yankui Ma Baofeng
Ministry-of-Education Key Laboratory of Fluid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing 100191,China
国际会议
2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)
西安
英文
141-144
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）