Proceedings ArticleDOI
Experimental Studies on a Propelled Micro Air Vehicle
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In this paper, an experimental study has been carried out on a typical Micro Air Vehicle of span 300mm having inverse Zimmerman planform and the objective is to get i) the aerodynamic characteristics of the vehicle in the range of incidence and sideslip angle the vehicle expected to encounter during its flight; ii) an understanding of the propeller effect on aerodynamic data and iii) the control surface (elevon) effectiveness with incidence.Abstract:
An experimental study has been carried out on a typical Micro Air Vehicle of span 300mm having inverse Zimmerman planform. The objective is to get i) the aerodynamic characteristics of the vehicle in the range of incidence and sideslip angle the vehicle expected to encounter during its flight; ii) an understanding of the propeller effect on the aerodynamic data and iii) the control surface (elevon) effectiveness with incidence. Tests were carried out in a low speed wind tunnel at a freestream velocity of 8 m/s and 12 m/s corresponding to a test Reynolds number based on chord of about 120000 and 180000 respectively. Analysis of the aerodynamic data showed significant effect of propeller flow field on the lift, stall angle and drag of the vehicle. The propeller induced flow is seen to increase the lift coefficient at higher angle of attack and delay the stall. Nonlinear variation is observed in the rolling moment indicating the onset of asymmetric flow field at higher incidence. The effectiveness of the elevon is observed to increase linearly with incidence.read more
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References
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Book
Aircraft Design: A Conceptual Approach
TL;DR: In this paper, the authors present an overview of the design process of an aircraft from a conceptual sketch, including sizing from a Conceptual Sketch and initial sizing of the aircraft.
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Fixed and Flapping Wing Aerodynamics for Micro Air Vehicle Applications
TL;DR: In this article, the authors present the progress made by over 50 active researchers in the field from Canada, Europe, Japan, and the United States in the area of aerodynamic efficiency of various fixed-wing, flapping wing, and rotary wing concepts.
Journal ArticleDOI
Low Aspect Ratio Aerodynamics at Low Reynolds Numbers
TL;DR: In this article, a study of the lift, drag, and pitching moment characteristics of low aspect ratio operating at low Reynolds numbers is presented, which includes comparison of lift-curve slope, nonlinear equation approximations, maximum lift coefficient, and center of lift.
Journal ArticleDOI
Numerical and experimental study of flow structure of low-aspect-ratio wing
Tang Jian,Zhu Keqin +1 more
TL;DR: In this article, the aerodynamic characteristics of a low-aspect-ratio elliptic wing with an E-174 aerofoil were studied by numerically solving unsteady incompressible Navier-Stokes equations.