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典型文献
Parameter study on lateral moments of banked wings in ground effect
文献摘要:
Ground effect dramatically improves the performance of the Wing-in-Ground (WIG)vehicles near the ground.However,making coordinate turnings in ground effect zone may raise complexity in flight control.The Angle of Attack (AOA) and height are believed to be important factors.To find the impact of these factors,three straight rectangular wings with different aspect ratios are simulated via CFD approach.The results show that in normal situations,the rolling moment tends to level the wing but less effective with the decreasing AOA and changes its direction when the AOA is less than a height dependent value.The yaw moment exhibits complex behavior because two different effects generate oppose moments.The rolling moment coefficient is more influenced by the ground if a wing has larger Aspect Ratio (AR) and works at low to medium AOA.The yawing coefficient is always more influenced if the wing has larger AR regardless AOAs.These findings can provide basic guidance for the design of control system and enable aircraft designers to reshape the crafts to avoid or utilize this effect.
文献关键词:
作者姓名:
Jingfeng XIE;Lei SONG;Jun HUANG;Jingcheng FU
作者机构:
School of Aeronautics Science and Engineering,Beihang University,Beijing 100083,China
引用格式:
[1]Jingfeng XIE;Lei SONG;Jun HUANG;Jingcheng FU-.Parameter study on lateral moments of banked wings in ground effect)[J].中国航空学报(英文版),2022(03):53-61
A类:
banked,WIG,turnings,oppose,yawing,AOAs
B类:
Parameter,study,lateral,moments,wings,ground,Ground,dramatically,improves,performance,Wing,vehicles,near,However,making,coordinate,zone,may,raise,complexity,flight,control,Angle,Attack,height,are,believed,important,factors,To,impact,these,three,straight,rectangular,different,aspect,ratios,simulated,via,CFD,approach,results,show,that,normal,situations,rolling,tends,level,but,effective,decreasing,changes,direction,when,than,dependent,value,exhibits,behavior,because,two,effects,generate,coefficient,more,influenced,by,has,larger,Aspect,Ratio,works,low,medium,always,regardless,These,findings,can,provide,basic,guidance,system,enable,aircraft,designers,reshape,crafts,avoid,utilize,this
AB值:
0.541211
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