Canard aircraft interactive behaviors between vectoring jet and aerodynamics at high angles of attack

被引：0
|
作者：
Wei Z. [1 ,2 ]
Wang H. [2 ]
Yuan B. [2 ]
Li Y. [2 ]
机构：
[1] School of Aeronautic Science and Engineering, Beihang University, Beijing
[2] AVIC Chengdu Aircraft Design and Research Institute, Chengdu
来源：
Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2020年 / 41卷 / 12期
关键词：
Aerodynamics; Canard configurations; High angles of attack; Vectoring jets; Wind tunnel experiments;
D O I：
10.7527/S1000-6893.2020.24434
中图分类号：
学科分类号：
摘要：
An experimental study on single-engine canard aircraft interactive behaviors between the vectoring jet and aerodynamics at high angles of attack is conducted in a low-speed wind tunnel. The test results indicate that increase in the engine nozzle diameter can enhance the lift and drag coefficient and produce pitch down moment at high angles of attack. Jets can significantly increase the lift and drag coefficient and also produce pitch down moment at high angles of attack. However, the increment of lift or drag and decrease of pitching caused by the jet is 50% less in case of a small nozzle than in case of a large nozzle. When the vectoring engine nozzle is deflected upward or downward, the airflows induced by the vectoring jets on the upper and lower surfaces of the aircraft are asymmetrical. The lift and drag coefficient decrease and the pitching moment increases when the jet is deflected upward, and the opposite is true when the jet is deflected downward. In addition, the effect of jets deflecting downward is noticeably larger than that of jets deflecting upward. Based on this, the flow field mechanism of interactive behaviors between the vectoring jet and the main flows is analyzed by numerical simulation. © 2020, Beihang University Aerospace Knowledge Press. All right reserved.
引用
收藏
相关论文
共 21 条
  • [1] WANG H F., Key technologies and future applications of thrust vectoring on fighter aircraft, Acta Aeronautica et Astronautica Sinica, 41, 6, (2020)
  • [2] ZHAO Q L., The application of thrust vectoring on fighters, International Aviation, 1, pp. 20-23, (1999)
  • [3] BURSEY R, DICKINSON R., Flight test result of the F-15S/MTD thrust vectoring/thrust reversing exhaust nozzle: AIAA-1990-1906, (1990)
  • [4] ASBURY S C, CAPONE F J., Thrust vectoring characteristics of the F-18 high alpha research vehicle at angles of attack from 0° to 70°: AIAA-1992-3095, (1992)
  • [5] BARHAM R W., Thrust vector aided maneuvering YF-22 advanced tactical fighter prototype: AIAA-1994-2105, (1994)
  • [6] WANG Z J, JIANG P, GURSUL I., Effect of thrust-vectoring jets on delta wing aerodynamics, Journal of Aircraft, 44, 6, pp. 1877-1888, (2007)
  • [7] WANG J J, LIU J Y, XUE Q Z., The effects of vectored jet on leading edge vortex breakdown of 65° delta wing, Experiments and Measurements in Fluid Mechanics, 14, 3, pp. 61-65, (2000)
  • [8] SHEU W L, LAN C E., Experimental investigation of the effect of thrust vectoring on lateral-directional aerodynamics at high angles of attack: AIAA-1994-1809, (1994)
  • [9] DENG X Y, WANG Y K., An experimental study of interactive behaviors between vectoring jet and main flows, Aerospace Science Meeting of AIAA, (1998)
  • [10] LI D, JIAO Y Q, SONG K., Numerical simulation of external flow interfered by jet flow, Acta Aeronautica et Astronautica Sinica, 29, 2, pp. 292-296, (2008)
123