在近距耦合鸭式布局中的涡系结构  

Vortex structures on close-coupled canard configurations

作　　者：刘沛清[1] 魏园[1] 

机构地区：[1]北京航空航天大学流体所,北京100083

出　　处：《实验流体力学》2005年第3期85-89,共5页Journal of Experiments in Fluid Mechanics

摘　　要：在近距耦合鸭式布局的机理研究中,主翼涡和鸭翼涡的干扰方式一直是研究的关键。通过激光片光实验观察了低雷诺数时上翼面主翼涡和鸭翼涡的相互位置,进而分析了在低雷诺数时主翼涡和鸭翼涡的干扰方式。研究表明,鸭翼涡和主翼涡的干扰行为包括卷绕和诱导(影响相互位置或下洗),但不同强度的鸭翼涡和主翼涡的干扰结果不同。通过初步分析,提出了一个统一的涡系干扰模型。The manner of the interaction between the leading - edge vortex of delta wing and canard is always the key of the research works. The paper investigates the position of the wing vortex and canard vortex by use of the laserlight - sheet at low Reynolds number and analyses the manner of interaction. The results indicate that the manner of interactions between canard vortex and wing vortex include rolling and inducing. The interaction between vortices with different strength is also different. Through analyzing, a model of vortex interaction is produced.

关 键 词：鸭式布局 激光片光 低雷诺数 涡升力 

分 类 号：O531.2[理学—等离子体物理]