航空工程进展2025，Vol.16Issue(3)：70-81,12.DOI:10.16615/j.cnki.1674-8190.2025.03.07
增升装置对大型客机气动特性影响的数值研究
A numerical study on the effects of high-lift devices on the aerodynamic characteristics of a large aircraft
摘要
Abstract
The high-lift device of an aircraft can improve its lift and safety,and the reasonable application of the high-lift device is crucial to improving the safety of the aircraft.This study evaluates the impact of various high-lift devices on the aerodynamic performance of wide-body airliners during these critical phases.A fully structured body-fitted grid is adopted to discretize the large wide-body aircraft into hundreds of millions of cells,and the Reynolds-averaged turbulence model is applied to conduct numerical simulation on aerodynamic performance.The reliability of the numerical simulation method is verified by comparing with the wind tunnel experimental results.Four typical cases of Ma=0.2,incoming flow angle of 0°,5°,10° and 15° are selected,and the effects of lift devices such as flaps,slats,spoilers,etc.on the overall aerodynamic performance of the aircraft are analyzed.The study's findings reveal that the fully structured grid employed herein accurately captures the three-dimensional mean flow field char-acteristics under various lift device configurations.Within an angle of attack range from 0° to 10°,the utilization of spoilers can reduce the aircraft's lift coefficient and increase the drag coefficient during the landing phase.Further-more,between 0° and 15° angles of attack,the application of slats and flaps provides additional lift,thereby enhanc-ing takeoff performance and stall characteristics.关键词
宽体客机/气动性能/结构网格/雷诺平均/增升装置Key words
wide-body aircraft/aerodynamic performance/structured grid/RANS/high-lift device引用本文复制引用
祝国旺,吴恒斌,黄生洪,尼早..增升装置对大型客机气动特性影响的数值研究[J].航空工程进展,2025,16(3):70-81,12.基金项目
大飞机创新谷创新项目(CIRP202003001) （CIRP202003001）
