NDLI: Propeller-induced Effects on the Aerodynamics of a Small Unmanned Aerial Vehicle

Content Provider	Scientific Electronic Library Online (SciELO)
Author	Maqsood, Adnan Huei, Foong Herng Go, Tiauw Hiong
Abstract	Abstract: The present paper has discussed investigations about the propeller slipstream effects on the aerodynamics of a generic unmanned air vehicle platform in the wind tunnel for a broad advance ratio range. The propeller-induced effects for small unmanned air vehicles are more significantly pronounced than general aviation aircraft, because of their high propeller-diameter-to-wing-span-ratio. The stall angle of attack of the small unmanned air vehicle is generally delayed under slipstream effects. The study evaluated the shift in stall angle of attack as a function of propeller-diameter-to-wing-span and advance ratios of the propeller. The aerodynamics of the unmanned air vehicle platform is estimated through wind-tunnel experiments. The study reported in this paper is part of an effort to develop the framework for the analysis of propeller-wing interactionfor small/micro unmanned air vehicles at an early design stage. Specifically, the slipstream effects on the aerodynamics of a generic small unmanned air vehicle are studied in the wind tunnel for the shift in the aircraft stall angle of attack. The lift-curve slope of the aircraft is independent from the variation of advance ratio. The stall characteristics show strong dependence on the advance ratio. Therefore, the relationship is modeled accurately using inverse-quadratic relationship. This empirical trend of the stall behavior with advance ratio can be useful in the analysis and simulation of the resulting flight and estimation of performance envelopes.
Related Links	http://www.scielo.br/scielo.php?script=sci_abstract&pid=S2175-91462012000400475&lng=en&nrm=iso http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2175-91462012000400475&lng=en&nrm=iso
Starting Page	475
Ending Page	480
Page Count	6
File Format	PDF
ISSN	21759146
DOI	10.5028/jatm.2012.04043112
Journal	Journal of Aerospace Technology and Management
Issue Number	4
Volume Number	4
Language	English
Publisher Date	2012-12-01
Publisher Department	Departamento de Ciência e Tecnologia Aeroespacial
Access Restriction	Open
Subject Keyword	Unmanned air vehicle Propeller interaction Powered testing Wind-tunnel testing
Content Type	Text
Resource Type	Article
Subject	Aerospace Engineering

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