| 垂直下降时旋翼诱导速度研究 |
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| 引用本文： | 张永凌.垂直下降时旋翼诱导速度研究[J].南京航空航天大学学报,1987(1). |
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| 作者姓名： | 张永凌 |
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| 作者单位： | 中国民航局科研所 南京航空学院校友 |
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| 摘 要： | 垂直下降一直是直升机气动研究的重要内容之一。本文着重探讨垂直下降时旋翼的诱导速度。主要内容是:1.初步考虑空气粘性的影响,运用涡流理论,求出垂直下降时桨盘处平均诱导速度和下降速度的关系曲线;2.计算旋翼周围各点的诱导速度,以给出旋翼的诱导速度场,并在计算机上进行绘制。
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| 关 键 词： | 直升机 旋翼 涡旋流动 速度场 |
The Study of the Induced Velocity of Rotor in Vertical Descent |
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| Zhang Yongling.The Study of the Induced Velocity of Rotor in Vertical Descent[J].Journal of Nanjing University of Aeronautics & Astronautics,1987(1). |
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| Authors: | Zhang Yongling |
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| Institution: | Zhang Yongling |
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| Abstract: | Vertical descent has been one of the important aspects of the aerodynamic research of helicopters. This paper deals with how to determine the induced velocity of the rotor in vertical descent. This paper takes for the first time into consideration the effect of viscosity of air and has successfully worked out the induced velocity curve by using the vortex theory method. This result is in agreement with experiments.In this paper, the induced velocity of each point around the rotor is also calculated and the induced velocity fields drown by computer are presented. |
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| Keywords: | helicopter rotor vortex flow velocity field |
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