CROSS-WIND INFLUENCE ON LOW ASPECT RATIO WINGS AT LOW REYNOLDS NUMBERS

被引：0

作者：

Noughabi, Amir Karimi ^{[1
]}

Tadjfar, Mehran ^{[1
]}

机构：

[1] Amirkabir Univ Technol, Dept Aerosp Engn, Tehran, Iran

来源：

PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING, 2013, VOL 1B: SYMPOSIA | 2014年

关键词：

low aspect ratio wing; low Reynolds number; inverse Zimmerman; cross-wind;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The aerodynamics of the low aspect ratio (LAIR) wings is of outmost importance in the performance of the fixed-wing micro air vehicles (MAVs). The flow around these wings is widely influenced by three dimensional (3D) phenomena: including wing-tip vortices, formation of laminar bubble, flow separation and reattachment, laminar to turbulent transition or any combination of these phenomena. All the recent studies consider the aerodynamic characteristics of the LAR wings under the effect of the direct wind. Here we focus on the numerical study of the influence of cross-wind on flow over the inverse Zimmerman wings with the aspect ratios (AR) between 1 and 2 at Reynolds numbers between 6x10(4) and 10(5). We have considered cross-wind's angles from 0 degrees to 40 degrees and angle of attack from 0 degrees to 12 degrees. The results show that lift and drag coefficient generally decrease when the angle of the cross-wind is increased.

引用

页数：9

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