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2010•Journal of Experiments in Fluid MechanicsRequires access

Experimental investigation on the aerodynamic characteristics of flexible wing MAV in horizontal gust

D. C. Chao

Open publisher page 2 citations

Abstract

A flexible wing MAV and a rigid wing MAV are designed.In the unsteady wind tunnel in NUAA,the aerodynamic characteristics of these MAVs in steady wind and in horizontal gust are studied.The differences between the rigid and flexible wing are discussed.The results show that the aerodynamic characteristics of the flexible wing is better than that of rigid wing,not only in steady wind but also in horizontal gust.The flexible MAV has the ability of delaying stall and alleviating the effects of gust.This is beneficial to steady flight.The PIV results show that the flow field structure of the flexible wing and rigid wing is different because of the distortion of the flexible wing.These will result in the variety of aerodynamic loads correspondingly.

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What this paper is about

A flexible wing MAV and a rigid wing MAV are designed.In the unsteady wind tunnel in NUAA,the aerodynamic characteristics of these MAVs in steady wind and in horizontal gust are studied.The differences between the rigid and flexible wing are discussed.The results show that the aerodynamic characteristics of the flexible wing is better than that of rigid wing,not only in steady wind but also in horizontal gust.The flexible MAV has the ability of delaying stall and alleviating the effects of gust.This is beneficial to steady flight.The PIV results show that the flow field structure of the flexible wing and rigid wing is different because of the distortion of the flexible wing.These will result in the variety of aerodynamic loads correspondingly.

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Available abstract

A flexible wing MAV and a rigid wing MAV are designed.In the unsteady wind tunnel in NUAA,the aerodynamic characteristics of these MAVs in steady wind and in horizontal gust are studied.The differences between the rigid and flexible wing are discussed.The results show that the aerodynamic characteristics of the flexible wing is better than that of rigid wing,not only in steady wind but also in horizontal gust.The flexible MAV has the ability of delaying stall and alleviating the effects of gust.This is beneficial to steady flight.The PIV results show that the flow field structure of the flexible wing and rigid wing is different because of the distortion of the flexible wing.These will result in the variety of aerodynamic loads correspondingly.

Key concepts: Wing, Aerodynamics, Stall (fluid mechanics), Wind tunnel, Wing twist, Aerospace engineering, Wing configuration, Angle of attack

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