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

共 50 条

[1] Aerodynamic characteristics of low aspect ratio wings at low Reynolds numbers
Torres, GE
Mueller, TJ
[J]. FIXED AND FLAPPING WING AERODYNAMICS FOR MICRO AIR VEHICLE APPLICATIONS, 2002, 195 : 115 - 141
[2] Numerical investigation of low-aspect-ratio wings at low Reynolds numbers
Cosyn, P.
Vierendeels, J.
[J]. JOURNAL OF AIRCRAFT, 2006, 43 (03): : 713 - 722
[3] Self-adaptive flaps on low aspect ratio wings at low Reynolds numbers
Arivoli, D.
Singh, Ishan
[J]. AEROSPACE SCIENCE AND TECHNOLOGY, 2016, 59 : 78 - 93
[4] AERODYNAMIC INVESTIGATIONS OF LOW-ASPECT-RATIO THIN PLATE WINGS AT LOW REYNOLDS NUMBERS
Liu, Y-C
Hsiao, F-B
[J]. JOURNAL OF MECHANICS, 2012, 28 (01) : 77 - 89
[5] Disappearance of Vortex Lift in Low-Aspect-Ratio Wings at Very-low Reynolds Numbers
Okamoto, Masato
Sasaki, Daisuke
Kamikubo, Masaya
Fujii, Ryota
[J]. TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 2019, 62 (06) : 310 - 317
[6] Formation Flight of Low-Aspect-Ratio Wings at Low Reynolds Number
Korkischko, Ivan
Konrath, Robert
[J]. JOURNAL OF AIRCRAFT, 2017, 54 (03): : 1025 - 1034
[7] Wake vorticity measurements for low aspect ratio wings at low Reynolds number
Kaplan, Sergey M.
Altman, Aaron
Ol, Michael
[J]. JOURNAL OF AIRCRAFT, 2007, 44 (01): : 241 - 251
[8] Low-aspect-ratio wing aerodynamics at low reynolds numbers
[J]. Torres, G.E., 1600, American Inst. Aeronautics and Astronautics Inc. (42):
[9] Low-aspect-ratio wing aerodynamics at low reynolds numbers
Torres, GE
Mueller, TJ
[J]. AIAA JOURNAL, 2004, 42 (05) : 865 - 873
[10] Wind tunnel tests of wings and rings at low Reynolds numbers
Laitone, EV
[J]. FIXED AND FLAPPING WING AERODYNAMICS FOR MICRO AIR VEHICLE APPLICATIONS, 2002, 195 : 83 - 90

← 1 2 3 4 5 →