第21卷第5期空军工程大学学报(自然科学版)
白雪公主花有毒吗
2020年10月JOURNAL OF AIR FORCE ENGINEERING UNIVERSITYf NATURAL SCIENCE EDITION)Vol.21No.5
Oct.2020
结冰条件下大型飞机翼面分离流场
干性咳嗽结构及空气动力学特性研究
魏扬1，李杰2，李明彳，李哲1，张恒彳
饺子象征着什么(1.空军工程大学航空工程学院，西安昇10038,2.西北工业大学航空学院，西安,710072；
3.中国空气动力研究发展中心空气动力学国家重点实验室，四川绵阳,621000)
摘要结冰对飞机的空气动力学影响特性是飞机结冰研究的重要内容。构建了具有典型大型客机几何外形的背景飞机模型，基于RANS方法对机翼结冰条件下全机的复杂空间流场结构及气动特性进行了研究。研究结果表明，机翼结冰主要影响背景飞机失速点附近的气动特性，翼面分离始发大幅提前、分离梯次
完全消失是全机失速特性恶化、气动边界缩小的直接原因。研究可为深刻认识飞机结冰对气动力影响的流动机理提供支撑，为大型飞机结冰后的气动特性分析及飞行动力学研究提供依据。
关键词机翼结冰;RANS方法；流场结构；气动特性
DOI10.3969/j.issn.1009-3516.2020.05.002
中图分类号V211文献标志码A文章编号1009-3516(2020)05-0009-08
Rearch on the Airflow Separation Structure and Aerodynamic Charact
eristics of Large Aircraft under Condition of Ice Formation on Wings
WEI Yang1,LI Jie2,LI Ming3,LI Zhe1,ZHANG Heng2
(1,Aeronautical Engineering College,Air Force Engineering University,Xi'an710038,China；
2.School of Aeronautics,Northwestern Polytechnical University,Xi?an710072,China；
3.State Key Laboratory of Aeronautics,China Aerodynamics Rearch and Development
Center,Mianyang621000,Sichuan,China)
勇敢的意思Abstract The influence of icing on the aerodynamics of aircraft is a focal point of aircraft icing rearch contents・An aircraft model on the background of a typical geometry of large pasnger aircraft is constructed・By the RANS method,the complex flow field structure and aerodynamic characteristics of the aircraft under condition of wing icing are studied.The rearch results show that the wing icing mainly affects the aerodynamic characteristics near the stall point of the background aircraft,and the departure of the airfoil flow paration is greatly in advance and the paration ladder disappears completely,which is the direct reason for the deterioration of the stall characteristics and the reduction of the aerodynamic boundary.The study can provide full support to deeply understand the aerodynamic flow mechanism of the effect of aircraft icing on aerodynamics,and provide a basis to analyze aerodynamic characteristics and flight dynamics of large aircraft after icing・酱汁花蛤
春雨绵绵Key words wing icing；RANS method；flow field structure；aerodynamic characteristics
治胃病的偏方收稿日期：2020-06-19
基金项目：国家973计划(2015CB755802)爱岗敬业心得体会
作者简介：魏扬(1992—)，男，陕西汉中人，博士生，主要从事飞机飞行动力学与空气动力学研究。
E-mail:153****************
通信作者：李哲(199O-)，男，河南新乡人，讲师，博士，主要从事飞行仿真与飞行安全研究。E-mail：******************
引用格式：魏扬，李杰，李阴，等.结冰条件下大型飞机翼面分离流场结构及空气动力学特性研究口1空军工程大学学报(自然科学版),2020. 21(5):9-16.WET Yang,LI Jie,LI Ming,et al.Rearch on the Airflow Separation Structure and Aerodynamic Charact-eristics of Large Aircraft under Condition of Ice Formation on Wings]J].Journal of Air Force Engineering University(Natural Science Edition),2020,21(5)：9-16.
