摘要
文章针对某可变翼空投载具总体设计进行了说明,基于Ansys-fluent软件研究了该空投载具空气动力学特性。研究表明,NACA4412翼型和NACA0012适合作为空投载具的主翼和尾翼型;在较大来流速度下,该空投载具在主翼展开角度χ_(k)为60°和90°左右时的阻力系数变化特征明显,相应的升阻比K值较高,可以获得较好的高速巡航性能。在正常巡航速度下,当主翼展开角χ_(k)不变时,升力系数C_(L)随迎角α增大而线性增加,阻力系数在迎角α为0°附近时最小,此时,α在0°~15°范围对应最大升阻比较大,极大值出现在α=5°附近。
This paper explains the overall design of a variable wing drop carrier and studies the aerodynamic characteristics of the drop carrier based on Ansys-fluent software.The study shows that the NACA4412 and NACA0012 are suitable for the main and tail fins,when the resistance factorχ_(k) is around 60°and 90°,and the corresponding lift-resistance ratio K is higher,which results in better high-speed cruise performance.However,under normal cruise speed,when the expansion angle of the main wing remainsχ_(k) unchanged,the lift coefficient C_(L) increases linearly with the increase of the angle ofα,and the resistance coefficient is the minimum when the angle of attack is near 0°.At this time,the maximum rise resistance from 0°to 15°corresponds to is relatively large,and the maximum value appears near 5°.
作者
候长澳
王东亮
路一凡
李辉
王磊磊
HOU Chang’ao;WANG Dongliang;LU Yifan;LI Hui;WANG Leilei(School of Mechanical and Eqiupmeng Engineering,Hebei University of Engineering,Handan 056038,China;Hebei Gaoxiang Geogrfaphic Information Technology Service Co.,Ltd.,Handan 056008,China)
关键词
可变翼
空投载具
数值模拟
空气动力学
variable wing
airdrop vehicle
numerical simulation
aerodynamics
作者简介
候长澳(1999-),男,安徽省宿州市人,就读于河北工程大学机械与装备工程学院,研究方向:机械工程。
