前端襟翼对带涡襟翼的细长翼影响的实验研究

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1993, Vol. 14 ›› Issue (8): 389-393.

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AN EXPERIMENTAL STUDY ON THE EFFECTIVENESS OF APEX-FLAP ON VORTEX-FLAPPED SLENDER WING

Guo Wen-hai Xing Ding-ding¹, Zhuang Feng-gan²

Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100080Fluid Mechanics Institute of Beijing Universityof Aeronautics and Astronautics, Beijing, 100080

Received:1990-12-10 Revised:1992-06-03 Online:1993-08-25 Published:1993-08-25

Abstract

Abstract: In order to improve the aerodynamic characteristics of vortex-flapped slonder wings, the apex-flap and trailing-edge flaps are added on them. Through studying the interaction between apex vortices and leading-edge vortices, a way is found to improve the aerodynamic characteristics of slender wings. Results show that the vortical interaction has a great influence on vortical production, movement and aerodynamic characteristics of slender wings. By controlling the deflected angle of the apex flap, the drag will be reduced and the lift increased. So the method of employing apex flap and trailing-edge flaps in combination is effective in enhancing the aerodynamic characteristics of slender wings.

Key words: drag reduction, vortex flaps, slender wings, experimental aerodynamics

Guo Wen-hai Xing Ding-ding;Zhuang Feng-gan. AN EXPERIMENTAL STUDY ON THE EFFECTIVENESS OF APEX-FLAP ON VORTEX-FLAPPED SLENDER WING[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1993, 14(8): 389-393.

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AN EXPERIMENTAL STUDY ON THE EFFECTIVENESS OF APEX-FLAP ON VORTEX-FLAPPED SLENDER WING

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