杨万礼, 余春锦, 王芳, 刘勇. 基于非定常涡格法的扑动频率对机翼涡和尾涡推力的影响[J]. 南昌航空大学学报(自然科学版), 2020, 34(1): 26-30, 96. DOI: 10.3969/j.issn.1001-4926.2020.01.005
引用本文: 杨万礼, 余春锦, 王芳, 刘勇. 基于非定常涡格法的扑动频率对机翼涡和尾涡推力的影响[J]. 南昌航空大学学报(自然科学版), 2020, 34(1): 26-30, 96. DOI: 10.3969/j.issn.1001-4926.2020.01.005
Wan-li YANG, Chun-jin YU, Fang WANG, Yong LIU. Effect of Flapping-wing on the Thrust Generated by Wing Vortex and Wake Based on UVLM[J]. Journal of nanchang hangkong university(Natural science edition), 2020, 34(1): 26-30, 96. DOI: 10.3969/j.issn.1001-4926.2020.01.005
Citation: Wan-li YANG, Chun-jin YU, Fang WANG, Yong LIU. Effect of Flapping-wing on the Thrust Generated by Wing Vortex and Wake Based on UVLM[J]. Journal of nanchang hangkong university(Natural science edition), 2020, 34(1): 26-30, 96. DOI: 10.3969/j.issn.1001-4926.2020.01.005

基于非定常涡格法的扑动频率对机翼涡和尾涡推力的影响

Effect of Flapping-wing on the Thrust Generated by Wing Vortex and Wake Based on UVLM

  • 摘要: 随着对非定常涡格法(UVLM)和低雷诺数空气动力学研究的不断深入,扑翼无人机(UAV)的发展已成为航空航天领域的研究热点。虽然以往的研究大多是关于扑翼无人机的俯仰和扑动运动,但为了更准确地仿真,需要研究机翼涡和尾涡对飞行器推力的气动影响。将三维非定常涡格法应用于扑翼飞行器模型,研究了不同扑动频率下机翼涡和尾涡产生的瞬时推力。结果表明:平均推力随着扑动频率的增加而增大,机翼涡产生的推力远大于尾涡;机翼涡和尾涡的推力比随扑动频率的增加而增大。本研究有助于了解生物的飞行机理,改进仿生扑翼飞行器的设计。

     

    Abstract: Development of flapping-wing aerial vehicles had been of interest in the aerospace community with ongoing research into unsteady and low Reynolds number aerodynamics based on the unsteady vortex lattice method (UVLM). Although most of the previous research had been about pitching and plunging motion of the flapping-wing aerial vehicles, aerodynamic influences of wing vortex and wake on vehicle thrust should be investigated in order to accurately model the vehicles. In this paper, three dimensions unsteady vortex lattice method was applied on the aerial vehicles models to study instantaneous thrust generated by wing vortex and wake for different flapping frequency. The results show that the average thrust increase with the increasing of flapping frequency and wing vortex generate much more thrust than the wake vortex; the thrust ratio of wing vortex and wake vortex increase with increasing of flapping frequency. This research is helpful to understand the flight mechanism of animals and improve the design of bionic flapping-wing aerial vehicles.

     

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