【摘要】 对经典的儒氏旋翼涡系模型作了一些修正，建立了悬停状态下共轴式旋翼的固定尾迹模型，对双旋翼之间的气动干扰问题开展了理论研究和实验研究，最后，将理论结果与实验结果进行了比较、分析，证明了理论方法的正确性，并获得了一些重要结论。更多还原

【Abstract】 The aerodynamic characteristics of coaxial rotors in hover state have been investigated. A vortex cylinder model is given to represent a single Joukowski rotor and two algebra formulas have been found to approximate the first and second kind of complete elliptical integrals. Then the whole vortex system of coaxial rotors is divided into a serious vortex cylinders. In addition, an experiment of the hovering aerodynamic characteristics of coaxial rotors has been conducted on the rotor test stand. By comparing the test results with the theoretical calculations, several important conclusions have been drawn.更多还原