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研究鸭式布局飞机模型振动鸭翼对主翼面涡流场的非定常干扰影响，进行了有无鸭翼、鸭翼不同偏角和不同振动频率、不同振动平均偏角及不同模型攻角下的主翼面涡流场静动态流动显示和翼面及立尾上压力分布测量。分析上述参数对主翼涡大小和强度、主翼涡位置和破散特性、压力分布特性的影响及其造成该现象的上下洗效应、涡系干扰和动态迟滞特性等复杂流动机理。
The influence of the canonic duck wing on the vortex field of the main airfoil was studied. The effects of different wing angles, different wing angles and different vibration frequencies, different angles of vibration and different angles of attack on the main wing Static and Dynamic Flows of Eddy Current Field and Measurement of Pressure Distribution on Airfoil and Tip. The influence of the above parameters on the size and strength of the main wing vortices, the position and breaking characteristics of the main wing vortex and the pressure distribution characteristics are analyzed. The complicated flow mechanism, such as the up-down washing effect, the vortex system disturbance and the dynamic hysteresis, are also analyzed.