随着科学技术的发展,超小型无人机(MAV)有可能成为低成本、高机动性的观测与监视系统。但是,从空气动力学的角度看MAV,由于小型化,雷诺数变小,粘性的影响增大,而且在雷诺数减少的同时低攻角的升力梯度变小,气动性能恶化。为解决这些问题,本研究对机翼表面的压力分布进行了测试,利用油流法对翼型表面进行了可视化试验,在105以下雷诺数范围探讨了4%弧线翼型和NACA0012翼型的气动性能,介绍了试验、分析方法及其结果。 With the development of science and technology, the ultra-small UAV (MAV) may become a low-cost, high-mobility observation and monitoring system. However, from the viewpoint of aerodynamics, the MAV is smaller in size and the Reynolds number is smaller and the influence of viscosity is increased. When the Reynolds number is decreased and the lift gradient at a low angle of attack is smaller, the aerodynamic performance is deteriorated. In order to solve these problems, the pressure distribution on the wing surface was tested in this study. The airfoil surface was visualized by oil flow method. The Reynolds number of 105 was used to investigate the effect of 4% arc airfoil and NACA0012 airfoil Pneumatic performance, introduced the test, analysis methods and their results.