典型文献
Optimization design of airfoils under atmospheric icing conditions for UAV
文献摘要：
Natural ice accretion on the lifting surface of an aircraft is detrimental to its aerody-namic performance,as it changes the effective streamlined body.The main focus of this work con-siders the optimization design of airfoils under atmospheric icing conditions for the Unmanned Aerial Vehicle(UAV).The ice formation process is simulated by the Eulerian approach and the three-dimensional Myers model.A three-equation turbulence model is implemented to accurately predict the stall performance of the iced airfoil.In recognition of the real atmospheric variability in the icing parameters,the medium volume diameter of supercooled water droplets is treated as an uncertainty with an assumed probability density function.A technique of polynomial chaos expansion is used to propagate the input uncertainty through the deterministic system.The numer-ical results show that the multipoint/multiobjective optimization strategy can efficiently improve both the ice tolerance and the cruise performance of an airfoil.The reason for the focus on robust optimization is that the ice angle of the optimized airfoil becomes less critical to the incoming flow.The optimized airfoils are applied to a UAV platform,in which the performance improvement and the relevant key flow feature are both preserved.
文献关键词：
中图分类号：
作者姓名：
Haoran LI;Yufei ZHANG;Haixin CHEN
作者机构：
School of Aerospace Engineering,Tsinghua University,Beijing 100084,China
文献出处：
引用格式：
[1]Haoran LI;Yufei ZHANG;Haixin CHEN-.Optimization design of airfoils under atmospheric icing conditions for UAV)[J].中国航空学报（英文版）,2022(04):118-133
A类：
airfoils,iced
B类：
Optimization,design,under,atmospheric,icing,conditions,UAV,Natural,accretion,lifting,surface,aircraft,detrimental,its,aerody,namic,performance,changes,effective,streamlined,body,main,focus,this,work,siders,optimization,Unmanned,Aerial,Vehicle,formation,process,simulated,by,Eulerian,approach,three,dimensional,Myers,model,equation,turbulence,implemented,accurately,predict,stall,In,recognition,real,variability,parameters,medium,volume,diameter,supercooled,water,droplets,treated,uncertainty,assumed,probability,density,function,technique,polynomial,chaos,expansion,used,propagate,input,through,deterministic,system,numer,results,show,that,multipoint,multiobjective,strategy,can,efficiently,both,tolerance,cruise,reason,robust,angle,optimized,becomes,less,critical,incoming,flow,are,applied,platform,which,improvement,relevant,key,feature,preserved
AB值：
0.58175
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