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Open AccessJournal ArticleDOI

Low Reynolds Number Aerodynamics of Low-Aspect-Ratio, Thin/Flat/Cambered-Plate Wings

Alain Pelletier, +1 more
- 01 Sep 2000 - 
- Vol. 37, Iss: 5, pp 825-832
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TLDR
In this paper, the authors measured the lift, drag, and pitching moment about the quarter chord on a series of thin flat plates and cambered plates at chord Reynolds numbers varying between 60,000 and 200,000.
Abstract
The design of micro aerial vehicles requires a better understanding of the aerodynamics of small low-aspect-ratio wings An experimental investigation has focused on measuring the lift, drag, and pitching moment about the quarter chord on a series of thin flat plates and cambered plates at chord Reynolds numbers varying between 60,000 and 200,000 Results show that the cambered plates offer better aerodynamic characteristics and performance It also appears that the trailing-edge geometry of the wings and the turbulence intensity in the wind tunnel do not have a strong effect on the lift and drag for thin wings at low Reynolds numbers Moreover, the results did not show the presence of any hysteresis, which is usually observed with thick airfoils/wings

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Citations
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Analyse du sillage et de l'écoulement décollé autour d'une plaque en incidence par PIV Tomographique

TL;DR: In this paper, the wake of a flat plate has been studied, at a Reynolds number of 200 000, by means of experiment series in the S4 wind tunnel in IMFT, using PIV and Tomo-PIV.
Journal ArticleDOI

Analysis of calculation results of lift and drag forces for several wings using nonlinear section data

TL;DR: In this paper, a combination of a numerical solution of lifting line theory with a technique developed to evaluate nonlinear section lift data was used to calculate the aerodynamic coefficients for 11 different finite span wings.
Dissertation

Simulation of flow around a Viking ship rudder.

Thomas Heggem
TL;DR: In this paper, the Oseberg ship rudder was analyzed from angles of attack α=-10 to α=10 degrees, with a 5 degree increase between simulations, and it was discovered that increasing the rudder rake angle proved advantageous to avoid rapid oscillations of lift, stabilising the lift coefficient as β increased.
Book ChapterDOI

Convergence in Gliding Animals: Morphology, Behavior, and Mechanics

TL;DR: A broad overview of gliding in diverse lineages, highlighting the ecological and physical pressures that have shaped this form of aerial locomotion in the animal kingdom, was provided in this article , where the relevance of specific gliding features is informed by the laws of physics: to successfully execute a glide, the animal must use a combination of body shape/size changes (morphology) along with attaining and modulating a favorable body posture (behavior).
Journal ArticleDOI

Turbinas hidrocinéticas tipo propela: una alternativa para la generación de energía eléctrica

TL;DR: Agarwal et al. as discussed by the authors considera pertinente el desarrollo de una turbina hidrocinética en la cual se incorporen características geométricas propias de las propelas.
References
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Book

Fundamentals of Aerodynamics

TL;DR: In this article, Navier-Stokes et al. discuss the fundamental principles of Inviscid, Incompressible Flow over airfoils and their application in nonlinear Supersonic Flow.
Book

Low-Speed Wind Tunnel Testing

William H. Rae, +1 more
TL;DR: The use of wind tunnel data for aerodynamic experiments has been studied in this article, where three dimensions of three-dimensional flow and pressure, flow, and shear stress measurements are used to calibrate the test section.
Journal ArticleDOI

Wind tunnel tests of wings at Reynolds numbers below 70 000

TL;DR: In this article, a planform wing was tested at Reynolds numbers as low as 20 000 in a low turbulence wind tunnel and the best profile was a thin plate with a 5% circular arc camber.