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Aerodynamic Numerical Analysis of the Low Reynolds Number Diamond Joined-Wing Configuration Unmanned Aerial Vehicle
- Source :
- International Journal of Aeronautical and Space Sciences. 19:544-562
- Publication Year :
- 2018
- Publisher :
- Springer Science and Business Media LLC, 2018.
-
Abstract
- Aerodynamic numerical simulation of low Reynolds number long-endurance Diamond Joined-Wing configuration unmanned aerial vehicle was performed. First, low Reynolds number aerodynamic characteristics of a typical wing are numerically simulated by solving the Reynolds averaged Navier–Stokes (RANS) equations based on the structural grid technology and the k–kL–ω transition model. To prove the accuracy of this method, experimental data and numerical simulation results were compared. Second, the performance of low Reynolds number Diamond Joined-Wing configuration UAV (unmanned aerial vehicle) aerodynamic characteristics and control surfaces was studied by numerical simulation and theoretical analysis. The analysis of the interference between the Frt-wing (front wing) and the Aft-wing (after wing) of the Diamond Joined-Wing configuration UAV and the reason for the change in the pitching moment in the lateral-directional motion is carried out. The results show that the Diamond Joined-Wing configuration UAV has a typical low Reynolds number surface flow characteristics, Frt-wing and Aft-wing flow interference are relatively minor at a small angle of attack, which has a high basic aerodynamic performance in addition to good stall characteristics, with longitudinal and lateral-directional static stability. The performance of control surfaces and flaps is higher to meet the design requirements. Finally, the accuracy of the numerical simulation results was verified by vehicle aerodynamic testing.
- Subjects :
- Physics
020301 aerospace & aeronautics
business.industry
Angle of attack
Longitudinal static stability
Aerospace Engineering
Reynolds number
Wing configuration
Stall (fluid mechanics)
02 engineering and technology
Aerodynamics
010502 geochemistry & geophysics
01 natural sciences
symbols.namesake
0203 mechanical engineering
Control and Systems Engineering
symbols
General Materials Science
Pitching moment
Electrical and Electronic Engineering
Aerospace engineering
Reynolds-averaged Navier–Stokes equations
business
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 20932480 and 2093274X
- Volume :
- 19
- Database :
- OpenAIRE
- Journal :
- International Journal of Aeronautical and Space Sciences
- Accession number :
- edsair.doi...........cc1df99d91a10936d9543e54037ab063