Special Issue: Key Technologies for Supersonic Civil Aircraft

Impact of engine geometric parameters on sonic boom characteristics of supersonic civil aircraft

  • Tianyu GONG ,
  • Chengjun SHAN ,
  • Lizhe YI ,
  • Yaosong LONG ,
  • Zhongtao CHENG
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  • School of Aerospace Engineering,Huazhong University of Science and Technology,Wuhan 430074,China

Received date: 2024-12-03

  Revised date: 2025-01-08

  Accepted date: 2025-03-24

  Online published: 2025-04-10

Supported by

National Natural Science Foundation of China(61903146)

Abstract

To mitigate the impact of engines on sonic booms, recent low-boom supersonic civil aircraft layouts both domestically and internationally have primarily adopted over-wing or tail-sitting engine configurations. However, these layouts insufficiently exploit the integrated design effects of supersonic aircraft and engines, adversely affecting the overall lift to drag ratio of the aircraft. Moreover, existing research on the influence of engines on sonic booms are inadequate. This paper explores an integrated design concept to devise an under-wing engine layout. A three-dimensional inward turning inlet is employed as the flow capture device for the integrated design of supersonic civil aircraft and engines, and controlling the sonic boom by adjusting the leading-edge curve and the shape parameters of cowl. The “BoomProp” program is utilized to predict and analyze the impact of engine geometric parameters and the installation positions of engine on the sonic boom characteristics of supersonic civil aircraft. The results indicate that optimizing the leading-edge curve, modifying the shape parameters of the cowl, and adjusting the installation position of the engine can effectively reduce the overall sound boom signature of the aircraft.

Cite this article

Tianyu GONG , Chengjun SHAN , Lizhe YI , Yaosong LONG , Zhongtao CHENG . Impact of engine geometric parameters on sonic boom characteristics of supersonic civil aircraft[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2025 , 46(20) : 531592 -531592 . DOI: 10.7527/S1000-6893.2025.31592

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