| 共轴式双旋翼流动的 N-S 方程模拟 |
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| 引用本文： | 童自力,孙茂.共轴式双旋翼流动的 N-S 方程模拟[J].航空学报,1998,19(1):1-5. |
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| 作者姓名： | 童自力 孙茂 |
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| 作者单位： | 北京航空航天大学流体力学研究所,北京,100083 |
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| 摘 要： | 通过数值求解带有动量源项的三维不可压缩N-S方程，模拟了共轴式双旋翼的流动。通过与单旋翼流场的下洗速度分布的比较，探讨了两旋翼间相互干扰的特性，并讨论了双旋翼的旋翼间距、前进比及桨根安装角等参数对流动的影响。
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| 关 键 词： | 旋翼空气动力学 下洗 动量源 共轴式双旋翼 |
NAVIER-STOKES CALCULATIONS OF COAXIAL ROTOR AERODYNAMICS |
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| Tong Zili,Sun Mao.NAVIER-STOKES CALCULATIONS OF COAXIAL ROTOR AERODYNAMICS[J].Acta Aeronautica et Astronautica Sinica,1998,19(1):1-5. |
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| Authors: | Tong Zili Sun Mao |
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| Institution: | Institute of Fluid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing, 100083 |
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| Abstract: | The 3 D incompressible N S equations with momentum source terms are solved to simulate the flow fields of coaxial rotor configurations. Induced velocity distributions of the coaxial rotors have been compared with that of a single rotor with the same geometry, advance ratio and pitch angle. The results reveal the aerodynamic interference between the upper and the lower rotors. The effects of distance between the rotors, root blade pitch angle, advance ratio, etc . are investigated. |
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| Keywords: | rotor aerodynamics downwash momentum source coaxial rotor |
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