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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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Journal ArticleDOI

Smart materials applied in a micro remotely piloted aircraft system with morphing wing

TL;DR: The article presents a research in the field of morphing wings (adaptive wing geometry) developed over a prototype of micro-unmanned air vehicle based on smart materials technology, which will optimize the aircraft performance features by modifying the curvature of the wing.
Proceedings ArticleDOI

Aerodynamic Comparison of Flat and Cambered Frames for Flexible MAV Wings

TL;DR: In this article, the authors compared the aerodynamic properties of flexible membrane MAV wings with flat frames and cambered frames and found that cambering the frames increased maximum lift and aerodynamic efficiency when compared to flat frames.
Journal ArticleDOI

Design, development and ground testing of hingeless elevons for MAV using piezoelectric composite actuators

TL;DR: In this article, a design methodology is presented to develop the hingeless control surfaces for MAV using adhesively bonded Macro Fiber Composite (MFC) actuators, which have got the capability to deflect the trailing edge surfaces of the wing to attain the required maneuverability, besides achieving the set aerodynamic trim condition.
Proceedings ArticleDOI

Experimental Investigation of Periodic Wind Gust Generated in a Low Speed Wind Tunnel

TL;DR: In this paper, the authors focused on the characterization of the periodic wind gust (oscillating flow) generated by an active gust generation mechanism in a wind tunnel and its effect on the aerodynamic performance of the test model.
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.