| 共轴式双旋翼悬停流场的水洞PIV测量 |
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| 引用本文： | 于世美,邓彦敏.共轴式双旋翼悬停流场的水洞PIV测量[J].航空动力学报,2007,22(11):1852-1857. |
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| 作者姓名： | 于世美 邓彦敏 |
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| 作者单位： | 北京航空航天大学,航空科学与工程学院,北京,100083 |
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| 摘 要： | 采用粒子图像测速(PIV)技术,对共轴式双旋翼在悬停状态下的流场进行水洞实验,测量得到旋翼流场的涡量和速度分布,桨尖涡的结构和脱落轨迹等直观整体的图像,研究了共轴式双旋翼悬停流场的气动干扰特性.为了比较,对单旋翼也进行测量.实验结果为直升机的气动计算和合理设计提供了可靠的实验依据.
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| 关 键 词： | 航空、航天推进系统 共轴式直升机 旋翼流场 尾迹 水洞实验 粒子图像测速(PIV) 共轴式双旋翼 悬停流场 水洞实验 测量 hovering flow field tunnel water 合理设计 气动计算 直升机 结果 单旋 比较 气动干扰特性 研究 粒子图像测速 等直 轨迹 脱落 |
| 文章编号： | 1000-8055(2007)11-1852-06 |
| 收稿时间： | 2006/10/24 0:00:00 |
| 修稿时间： | 2006年10月24 |
PIV measurement of water tunnel for the flow field of a hovering coaxial-rotor |
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| YU Shi-mei and DENG Yan-min.PIV measurement of water tunnel for the flow field of a hovering coaxial-rotor[J].Journal of Aerospace Power,2007,22(11):1852-1857. |
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| Authors: | YU Shi-mei and DENG Yan-min |
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| Institution: | School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | Particle Image Velocimetry(PIV) technique was applied to water tunnel experiment for the flow field of hovering coaxial-rotor.Vortex contours and velocity distribution of the rotor flow fields,configuration and trajectory of the tip vortex were measured.The aerodynamic interference characteristics of hovering coaxial-rotor flow fields were also investigated.A single-rotor was also measured for comparison purpose.The experimental results provide reliable reference for aerodynamic calculation and reasonable design of helicopter. |
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| Keywords: | aerospace propulsion system coaxial helicopter rotor flow fields wake water tunnel experiment particle image velocimetry(PIV) |
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