Open AccessNumerical analysis and improvement of longitudinal moment pitch-up characteristics for civil aircraft
Author(s) -
Xingda Cui,
Zhiwei Zhu,
Yonggang Yu,
Lei Yu,
Yalin Li,
Tao Zhou
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2010/1/012075
Subject(s) - pitching moment , moment (physics) , stall (fluid mechanics) , computational fluid dynamics , lift (data mining) , engineering , range (aeronautics) , aerospace engineering , structural engineering , angle of attack , aeronautics , computer science , aerodynamics , physics , classical mechanics , data mining
The longitudinal moment pitch-up ahead of the stall angle can decrease the available range of maximum lift coefficient. It has a major influence on take-off and landing performance, and safety of a civil aircraft. Numerical simulation by CFD (Computational Fluid Dynamics) is used to study the longitudinal moment characteristics of a civil aircraft with landing configuration in this paper. Combined with the flowfield post-processing interpolation technology, the reason of longitudinal moment pitch-up is analysed and discussed. According to the research results, the characteristics of longitudinal moment pitch-up are further improved by modification. The relevant research methods and results have some guiding significance for improving the moment characteristics of a civil aircraft.