| 基于零质量射流技术的旋翼翼型流场主动控制研究 |
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| 引用本文： | 张威,林永峰,陈平剑.基于零质量射流技术的旋翼翼型流场主动控制研究[J].直升机技术,2010(1):15-20. |
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| 作者姓名： | 张威 林永峰 陈平剑 |
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| 作者单位： | 中国直升机设计研究所,江西,景德镇,333001 |
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| 摘 要： | 旋翼翼型经常工作在大迎角来流条件下,流动分离普遍存在。通过在具有分离流动的翼型表面施加零质量射流控制,可以实现对流动分离的抑制,达到增升减阻、推迟失速的目的。本文通过对某旋翼翼型的流动控制的计算,采用数值模拟方法研究了零质量射流主动流动控制机理,并对影响零质量射流控制效果的射流喷角、动量系数和无量纲频率三个控制参数进行了分析比较,得出了一些有意义的结论。
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| 关 键 词： | 翼型 零质量射流 控制机理 控制参数 |
The Investigation of Active Control Technology in Airfoil Flow Field Based on the Synthetic Jet |
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| Authors: | ZHANG Wei LIN Yongfeng CHEN Pingjian |
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| Institution: | ZHANG Wei,LIN Yongfeng,CHEN Pingjian(China Helicopter Research , Development Institute,Jingdezhen 333001,China) |
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| Abstract: | The rotor airfoil often works on the large angle of attack,so the flow separation is very usual.By using the synthetic jet on the airfoil,the separation can be controlled to gain the enhanced lift and the delayed stall angle.In this paper,the control mechanism of the synthetic jet is studied by using numerical simulation method.Then the key control parameter study is also carried out to show the effects of jet angle,momentum coefficient and jet frequency. |
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| Keywords: | airfoil synthetic jet control mechanism control parameter |
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