Results 51 to 60 of about 12,055 (162)
Flexible Helping Behaviour in the Azure‐Winged Magpie
Ethology, 2003 AbstractHelping to rear the offspring of others may be a way for younger birds to gain access to future reproduction especially when turnover of breeding opportunities is low. However, this explanation is not applicable to cases where adults also help, or when roles shift between helpers and breeders.
Valencia-Ruíz, Juliána +2 more
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Numerical Analysis of High Aspect Ratio Flexible Wings in Flapping Motion
Journal of Applied Fluid Mechanics, 2019 Wing geometry, kinematics and flexibility are the fundamental components which contribute towards the aerodynamics performance of micro aerial vehicles. This research focuses on determining the role of isotropic flexibility in the aerodynamic performance
A. Shahzad, M. N. Mumtaz Qadri, S. Ahmad
doaj
Aerodynamic Lift Modeling and Analysis of a Bat-like Flexible Flapping-Wing Robot
ModellingIn the research and development system of bat-like flapping-wing flying robots, lift modeling and numerical analysis are the key theoretical basis, which will directly affect the construction of the body structure and flight control system.
Bosong Duan +5 more
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Experimental Control of Two Connected Fixed Wing Aircraft
Aerospace, 2018 This paper investigates the design and flight test of two fixed wing aircraft connected at the wing tips. Connecting multiple aircraft introduces flexible modes into a typically rigid body system.
Collin Carithers, Carlos Montalvo
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Engineering Applications of Computational Fluid MechanicsFlapping wing micro aerial vehicles (FWMAVs) with flexible wings offer unique advantages across multiple scenarios due to their high energy efficiency and precision capabilities.
Fa Song, Wantong Zhang, Jiyu Sun
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Static aeroelastic rolling of a highly flexible wing: Pazy wing with aileron
Journal of the Brazilian Society of Mechanical Sciences and EngineeringAbstract There is an increasing trend towards the use of higher aspect-ratio wings on commercial transport aircraft over the years. The well-known effect of slender wings on reducing fuel consumption are leading wing designs to higher aspect ratios and higher flexibility.
Felipe Buarque Cordeiro de Melo +2 more
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Insect wing flexibility improves the aerodynamic performance of small revolving wings
iScienceInsect wings are flexible, elastically deforming under loads experienced during flapping. The adaptive value of this flexibility was tested using a revolving wing set-up. We show that the wing flexibility of the beetle Batocera rufomaculata suppresses the reduction in lift coefficient that is expected to occur with a reduction of wing size compared to ...
Gal Ribak +6 more
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Leading-Edge Vortex Characteristics of Surging-Translating Flexible Wings
Havacılık ve Uzay Teknolojileri Dergisi, 2023 This study experimentally investigates the flow fields around rigid and chordwise-flexible wings,performing a rectilinear translational motion starting from rest.
Mahdi Yazdanpanah, Mustafa Perçin
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The Efficiency of a Hybrid Flapping Wing Structure—A Theoretical Model Experimentally Verified
Aerospace, 2016 To propel a lightweight structure, a hybrid wing structure was designed; the wing’s geometry resembled a rotor blade, and its flexibility resembled an insect’s flapping wing.
Yuval Keren +2 more
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Application of an efficient fluid simulation method based on IBM and AMR in complex fluid–structure interaction [PDF]
AIP AdvancesCurrently, the immersed boundary method (IBM) is widely used in fluid–structure interaction simulations. However, due to the fact that the mesh used in IBM is often fixed, when the motion or deformation range of the object is large, it causes significant
Le Wang +3 more
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