Aerodynamic optimization for low aspect ratio wing at low Reynolds number

被引：0

作者：

Liu, Jie ^{[1
]}

Weng, Pei-Fen ^{[1
]}

Ding, Yu ^{[1
]}

机构：

[1] Shanghai University, Shanghai Institute of Applied Mathematics and Mechanics, Shanghai 200072, China

来源：

Kongqi Donglixue Xuebao/Acta Aerodynamica Sinica | 2009年 / 27卷 / 04期

关键词：

Lift - Planforms - Compressibility - Navier Stokes equations - Aspect ratio - Low aspect ratio wings - Reynolds number - Drag - Lift drag ratio - Computational fluid dynamics - Fixed wings - Micro air vehicle (MAV);

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Fixed-wing micro air vehicle (MAV) is numerically investigated and optimized with genetic algorithm (GA). Aerodynamic performance evaluation is provided by three-dimensional incompressible Navier-Stokes equations that are solved numerically with artificial compressibility method. Present GA is real-coded and is developed with elite production, tournament selection, adaptive crossover and mutation. Five design points, angles of attack ranging from 2 deg. to 10 deg. with interval of 2.0, are considered. As a result, higher searching efficiency and more than 30% improvement in lift-drag ratio are obtained for every design point. Conclusively, optimal airfoils have three main characteristics: 1) elliptical planform, 2) AR of 1.2, 3) large leading-edge radius and cusped trailing-edge. This shape yields higher lift coefficient and decreases induced drag greatly, so the performance of MAV wing is improved highly at low Reynolds number.

引用

页码：462 / 468

共 50 条

[21] Aerodynamic Analysis of a Flapping Rotary Wing at a Low Reynolds Number
Wu, Jianghao
Wang, Dou
Zhang, Yanlai
AIAA JOURNAL, 2015, 53 (10) : 2951 - 2966
[22] Large aerodynamic forces on a sweeping wing at low Reynolds number
Sun Mao
Wu Jianghao
Acta Mechanica Sinica, 2004, 20 (1) : 24 - 31
[23] Effect of Aspect Ratio on Aerodynamic Characteristics at Low Reynolds Numbers
Mizoguchi, Makoto
Itoh, Hajime
AIAA JOURNAL, 2013, 51 (07) : 1631 - 1639
[24] Comment on "Low-Aspect-Ratio Wing Aerodynamics at Low Reynolds Numbers"
McCutchen, CW
AIAA JOURNAL, 2006, 44 (04) : 924 - 924
[25] Aerodynamic performance of the locust wing in gliding mode at low Reynolds number
Jinwu Xiang
Jianxun Du
Daochun Li
Kai Liu
Journal of Bionic Engineering, 2016, 13 : 249 - 260
[26] Aerodynamic Performance of the Locust Wing in Gliding Mode at Low Reynolds Number
Xiang, Jinwu
Du, Jianxun
Li, Daochun
Liu, Kai
JOURNAL OF BIONIC ENGINEERING, 2016, 13 (02) : 249 - 260
[27] Unsteady aerodynamic characteristics of a translating rigid wing at low Reynolds number
Mancini, Peter
Manar, Field
Granlund, Kenneth
Ol, Michael V.
Jones, Anya R.
PHYSICS OF FLUIDS, 2015, 27 (12)
[28] Aerodynamic efficiency of a bioinspired flapping wing rotor at low Reynolds number
Li, H.
Guo, S.
ROYAL SOCIETY OPEN SCIENCE, 2018, 5 (03):
[29] EXPERIMENTS ON THE VELOCITY FIELD AROUND A LOW ASPECT RATIO WING AT LOW REYNOLDS NUMBERS
Morse, Daniel R.
Liburdy, James A.
IMECE 2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, VOL 9, PTS A-C, 2010, : 393 - 406
[30] Wake vorticity measurements for low aspect ratio wings at low Reynolds number
Kaplan, Sergey M.
Altman, Aaron
Ol, Michael
JOURNAL OF AIRCRAFT, 2007, 44 (01): : 241 - 251

← 1 2 3 4 5 →