空气动力学学报2012，Vol.30Issue(3)：353-357,372,6.
合成双射流控制翼型分离流动的数值研究
Numerical simulation of separated flow control on an airfoil using dual synthetic jets
摘要
Abstract
As the last word of the synthetic jet technology, dual synthetic jets have the characteristics of more energetic and more stable. Numerical computations are performed to study the different effect of single synthetic jet and dual synthetic jets on the separate flow of an airfoil. The results indicate that when the synhetic jet working, the angle of attack stall can increase by 2° and the maximum lift coefficient can increase by 18% , while the dual synthetic jets result in a increase by 4°and 35% separately. Therefore the dual synthetic jets have better performance on separate flow control. Parameter study is conducted to show the effects of forcing frequency and momentum coefficient of the dual synthetic jets on the aerodynamic performance. The results show that the optimum efficiency can be achieved when the frequency of the actuator is 1 and 2 times the characteristic frequency of the flow field, meanwhile the control is more efficient with the momentum coefficient increases.关键词
主动流动控制/合成射流/合成双射流/激励器/分离流动Key words
active flow control/synthetic jet/dual synthetic jets/actuators/separate flow分类
航空航天引用本文复制引用
王林,罗振兵,夏智勋,刘冰..合成双射流控制翼型分离流动的数值研究[J].空气动力学学报,2012,30(3):353-357,372,6.基金项目
国家自然科学基金(11002161) （11002161）
全国优秀博士学位论文作者专项基金(201058) （201058）
