Numerical simulation and experimental study on aerodynamics of the micro coaxial rotors

Lei Yao; Ji Yuxia; Wang Changwei

doi:10.11729/syltlx20160193

Volume 31 Issue 5

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Journal of Experiments in Fluid Mechanics > 2017 > 31(5): 67-73. > DOI: 10.11729/syltlx20160193

Lei Yao, Ji Yuxia, Wang Changwei. Numerical simulation and experimental study on aerodynamics of the micro coaxial rotors[J]. Journal of Experiments in Fluid Mechanics, 2017, 31(5): 67-73. DOI: 10.11729/syltlx20160193

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Numerical simulation and experimental study on aerodynamics of the micro coaxial rotors

School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, China

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Received Date: December 12, 2016
Revised Date: April 06, 2017

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Abstract

In order to study the effect of rotor spacing on the aerodynamic performance of small-scale coaxial rotor in hover, a platform is designed to test the aerodynamic characteristics of the coaxial rotor system with different rotor spacing ratios h/r of 0.32, 0.38, 0.45, 0.51, 0.58, 0.65 and 0.75. Rotor thrust and power obtained from measurement with different rotary speeds are used to estimate the aerodynamic characteristics of the rotor system. In the meantime, the uncertainty of the thrust coefficient, power coefficient and power loading (PL), and the calculated errors are all less than 2%. Distributions of streamline and pressure with different rotor spacing ratios are obtained from numerical simulation to analyze the interference between top and bottom rotors. Finally, in comparison with test results, the aerodynamic configuration is optimized with the rotor spacing ratio of 0.38. The results prove that the performance of coaxial rotor in hover can be improved with proper rotor spacing. With certain rotor spacing, aerodynamic performance at higher rotational speed is more prominent when the interference between the rotors is beneficial for the aerodynamics, and greater power loading is obtained at lower rotational speed with smaller interference.
- coaxial rotor,
- in hover,
- aerodynamic interference,
- numerical simulation,
- aerodynamic configuration

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[1]	唐正飞, 王畅, 高卓飞.微型旋翼悬停状态气动性能分析方法[J].南京航空航天大学学报, 2011, 43(3):357-362. http://www.cnki.com.cn/Article/CJFDTOTAL-NJHK201103016.htm Tang Z F, Wang C, Gao Z F. Analysis method for prediction of micro-rotor performance in hover[J]. Journal of Nanjing University of Aeronautics & Astronautics, 2011, 43(3):357-362. http://www.cnki.com.cn/Article/CJFDTOTAL-NJHK201103016.htm
[2]	朱正, 招启军, 李鹏.悬停状态共轴刚性双旋翼非定常流动干扰机理[J].航空学报, 2016, 37(2):568-578. http://www.cnki.com.cn/Article/CJFDTOTAL-HKXB201602020.htm Zhu Z, Zhao Q J, Li P. Unsteady flow interaction mechanism of coaxial rigid rotors in hover[J]. Acta Aeronautica et Astronautica Sinica, 2016, 37(2):568-578. http://www.cnki.com.cn/Article/CJFDTOTAL-HKXB201602020.htm
[3]	高卓飞. 微型共轴双旋翼气动特性分析方法与试验研究[D]. 南京: 南京航空航天大学, 2011. http://cdmd.cnki.com.cn/Article/CDMD-10287-1011291753.htm Gao Z F. Analytical methods and experimental research on micro coaxial rotor's aerodynamic performance[D]. Nanjing:Nanjing University of Aeronautics and Astronautics, 2011. http://cdmd.cnki.com.cn/Article/CDMD-10287-1011291753.htm
[4]	Yoon S, Lee H C, Pulliam T P. Computational study of flow interactions in coaxial rotors[C]. The AHS Technical Meeting on Aeromechanics Design for Vertical Lift, San Francisco:NASA Ames Research Center, 2016:20-22.
[5]	王强, 陈铭, 王保兵, 等.旋翼几何参数对共轴双旋翼悬停性能的影响分析[J].航空动力学报, 2014, 29(6):1434-1443. http://www.cnki.com.cn/Article/CJFDTOTAL-HKDI201406025.htm Wang Q, Chen M, Wang B B, et al. Effect of geometric parameters of rotor on hovering performance of coaxial rotor[J]. Journal of Aerospace Power, 2014, 29(6):1434-1443. http://www.cnki.com.cn/Article/CJFDTOTAL-HKDI201406025.htm
[6]	雷瑶. Hex-rotor无人机多旋翼流场数值模拟与试验研究[D]. 长春: 中国科学院长春光学精密机械与物理研究所, 2013. http://cdmd.cnki.com.cn/Article/CDMD-80139-1013293644.htm Lei Y. Aerodynamics of a hex-rotor SUAV:numerical simulation and experimental study[D]. Changchun:Changchun Institute of Optics, Fine Mechanics and Physics Chinese Academy of Sciences, 2013. http://cdmd.cnki.com.cn/Article/CDMD-80139-1013293644.htm
[7]	王畅. 微型共轴双旋翼气动特性分析方法与实验研究[D]. 南京: 南京航空航天大学, 2010. http://cdmd.cnki.com.cn/Article/CDMD-10287-1011291753.htm Wang C. Analytical methods and experimental research of micro-rotor aerodynamic characteristics[D]. Nanjing:Nanjing University of Aeronautics and Astronautics, 2010. http://cdmd.cnki.com.cn/Article/CDMD-10287-1011291753.htm
[8]	叶靓, 徐国华.共轴式双旋翼悬停流场和气动力的CFD计算[J].空气动力学学报, 2012, 30(4):437-442. http://www.cnki.com.cn/Article/CJFDTOTAL-KQDX201204003.htm Ye L, Xu G H. Calculation on flow field and aerodynamic force of coaxial rotors in hover with CFD method[J]. Acta Aerodynamica Sinica, 2012, 30(4):437-442. http://www.cnki.com.cn/Article/CJFDTOTAL-KQDX201204003.htm
[9]	Xu H Y, Ye Z Y. Numerical simulation of unsteady flow around forward flight helicopter with coaxial rotors[J]. Chinese Journal of Aeronautics, 2011, 24(1):1-7. DOI: 10.1016/S1000-9361(11)60001-0
[10]	Bohorquez F. Rotor hover performance and system design of an efficient coaxial rotary wing micro air vehicle[D]. Maryland:University of Maryland, 2007.
[11]	Syal M. Contributions to the aerodynamic optimization of a coaxial rotor system[D]. Maryland:University of Maryland, 2008.
[12]	Lei Y, Bai Y, Xu Z J, et al. An experimental investigation on aerodynamic performance of a coaxial rotor system with different rotor spacing and wind speed[J]. Experimental Thermal and Fluid Science, 2013:779-785. DOI: 10.1016/j.expthermflusci.2012.09.022
[13]	Lei Y, Bai Y, Xu Z. Wind effect on aerodynamic optimization for non-planar rotor pairs using full-scale measurements[J]. Journal of Intelligent & Robotic Systems (2017):doi:10.1007/s10846-017-0476-y.
[14]	Lakshminarayan V K, Baeder J D. Computational investigation of micro-scale coaxial rotor aerodynamics in hover[J]. Journal of Aircraft, 2010, 47(3):940-955. DOI: 10.2514/1.46530
[15]	Coleman C P. A survey of theoretical and experimental coaxial rotor aerodynamic research:NASA TP 3675[R]. Washington D C:NASA, 1997.
[16]	马杨超, 于世美, 邓彦敏.共轴式双旋翼悬停诱导速度场的PIV实验研究[J].实验流体力学, 2012, 26(1):16-20. http://www.syltlx.com/CN/abstract/abstract10572.shtml Ma Y C, Yu S M, Deng Y M. PIV experimental investigation of coaxial rotors' induced velocity field in hover[J]. Journal of Experiments in Fluid Mechanics, 2012, 26(1):16-20. http://www.syltlx.com/CN/abstract/abstract10572.shtml
[17]	姬乐强, 朱清华, 李建波.共轴双旋翼及孤立旋翼自转气动特性试验研究[J].实验流体力学, 2013, 27(5):7-10. http://www.syltlx.com/CN/abstract/abstract10384.shtml Ji L Q, Zhu Q H, Li J B. Experimental investigation on aerodynamic characteristics of auto-rotating coaxial twin rotor and single rotor[J]. Journal of Experiments in Fluid Mechanics, 2013, 27(5):7-10. http://www.syltlx.com/CN/abstract/abstract10384.shtml
[18]	白越, 曹萍, 高庆嘉, 等.六转子微型飞行器及其低雷诺数下的旋翼气动性能仿真[J].空气动力学学报, 2011, 29(3):325-329. http://www.cnki.com.cn/Article/CJFDTOTAL-KQDX201103009.htm Bai Y, Cao P, Gao Q J, et al. Characterization of a multi rotor micro air vehicle and simulation of airfoil aerodynamics at low Reynolds[J]. Acta Aerodynamica Sinica, 2011, 29(3):325-329. http://www.cnki.com.cn/Article/CJFDTOTAL-KQDX201103009.htm

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