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中文摘要：
流动可视化实验在水隧道被进行因为低方面比率在低雷纳兹数字收割了翅膀。试验性的结果证明模型打扫角度影响领先的旋涡的形成和发展。为有 =0 的翅膀
英文摘要：
Flow visualization experiments are conducted in water tunnel for low aspect ratio cropped wings at low Reynolds number. The experimental results show that the model sweep angle A influences the formation and development of the leading-edge vortex. For wings with A =0°, the dominant flow structure is transverse vortex. When A≥26°, the dual vortex structure can be observed at some angles of attack, and it is confirmed that the dual vortex is a special structure for flow over low aspect ratio wing at low Reynolds number. For A≥56° wings, the dual vortex structure can be observed in a large range of attack angles. Moreover, in comparison with the outer vortex, the breakdown position of the primary vortex is delayed, and the larger the A, the later the breakdown location at the same angle of attack.
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