Using the computational fluid dynamics method, the numerical simulation of a typical two-dimensional multi segment wing with adaptive drooped hinge flags(ADHF) was carried out, and the effect of spoiler deflection on the aerodynamic lift and drag characteristics of a multi-segment wing with a small flap take-off configuration was investigated. The results show that: within the research scope of this paper, 1) Fixing the spoiler deflection and gap, and increasing the flap deflection can significantly improve the lift of the multi-segment wing and increase the drag in the lift range of 1.13VSR~1.25VSR; 2) Fixing the flap position and increasing the spoiler deflection can produce two effects of increasing the wing curvature and decreasing the gap; 3) Increasing the curvature of the wing can improve the lift of the multi-segment wing at a small angle of attack, but have a limited effect on the maximum lift, while increasing the curvature significantly reduces the drag of the multi-segment wing in the 1.13VSR~1.25VSR lift range; 4) In the range of 0.3%c to 1.3%c, reducing the gap decreases the lift at all angles, but it also significantly reduces the drag in the lift range of 1.13VSR~1.25VSR; 5) Fixed flap position, with the spoiler downward deflection, the lift increases at small angles and decreases in the near-stall section, while the drag is significantly reduced in the 1.13VSR~1.25VSR lift range.
刘苍松,刘沛清.民用飞机ADHF构型升阻特性研究[J].民用飞机设计与研 究,2022(4):27-33LIU Cangsong, LIU Peiqing. Lift-drag characteristics of ADHF configuration for civil aircraft[J]. Civil Aircraft Design and Research,2022,(4):27-33. ( in Chinese)复制