Volume 48 Issue 6
Jun.  2022
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JIA Yuan, CAO Xiang, WU Jianghaoet al. Influence of suction flow control on aerodynamic characteristics of blended-wing-body aircraft[J]. Journal of Beijing University of Aeronautics and Astronautics, 2022, 48(6): 1065-1071. doi: 10.13700/j.bh.1001-5965.2020.0715(in Chinese)
Citation: JIA Yuan, CAO Xiang, WU Jianghaoet al. Influence of suction flow control on aerodynamic characteristics of blended-wing-body aircraft[J]. Journal of Beijing University of Aeronautics and Astronautics, 2022, 48(6): 1065-1071. doi: 10.13700/j.bh.1001-5965.2020.0715(in Chinese)

Influence of suction flow control on aerodynamic characteristics of blended-wing-body aircraft

doi: 10.13700/j.bh.1001-5965.2020.0715
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  • Corresponding author: WU Jianghao, E-mail: buaawjh@buaa.edu.cn
  • Received Date: 26 Dec 2020
  • Accepted Date: 30 Jan 2021
  • Publish Date: 20 Jun 2022
  • This paper studies a blended-wing-body aircraft with distributed propulsion, explores the influence of suction control (with suction position and suction momentum variables) on the aerodynamic characteristics of aircraft in take-off and cruise state and explains the mechanism of the influence of suction flow control on the aerodynamic characteristics of the blended-wing-body aircraft. The results show that under the condition of high take-off attack angle, compared with the non-aspirated state, the maximum lift coefficient of the aircraft is increased by 7.16% when the aspirator is located in the outer wing segment (chord position being 0.05c, and inspiratory momentum being 0.02). In the cruise state, when the aspirator is located in the centrosome (chord position being 0.6c, and inspiratory momentum being 0.012 5), the pressure distribution of the powertrain is improved, and the lift-drag ratio of the aircraft is increased by 2.14% compared with that of the non-getter state.

     

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