Results 31 to 40 of about 9,281 (235)

Simulation of incompressible viscous flows around moving objects by a variant of immersed boundary-Lattice Boltzmann method [PDF]

open access: yes, 2009
A variant of immersed boundary-lattice Boltzmann method (IB-LBM) is presented in this paper to simulate incompressible viscous flows around moving objects.
Anderson   +42 more
core   +1 more source

Rotational accelerations stabilize leading edge vortices on revolving fly wings [PDF]

open access: yes, 2009
The aerodynamic performance of hovering insects is largely explained by the presence of a stably attached leading edge vortex (LEV) on top of their wings. Although LEVs have been visualized on real, physically modeled, and simulated insects, the physical
Dickinson, Michael H., Lentink, David
core   +2 more sources

Reduced-order modeling of unsteady aerodynamics of a flapping wing based on the Volterra theory

open access: yesResults in Physics, 2017
Flapping flight mechanisms offers a power-efficient and highly manoeuvrable basis for the development of micro air vehicles. The aerodynamic knowledge and prediction tools of the flapping wing are quite important for the design of micro air vehicles.
Kai Liu, Daochun Li, Jinwu Xiang
doaj   +1 more source

On mathematical modelling of insect flight dynamics in the context of micro air vehicles [PDF]

open access: yes, 2006
This paper discusses several aspects of mathematical modelling relevant to the flight dynamics of insect flight in the context of insect-like flapping wing micro air vehicles (MAVs).
Ansar, Salman A.   +2 more
core   +1 more source

Kinematic Optimization of a Flexible Wing Undergoing Flapping and Pitching

open access: yesShock and Vibration, 2021
In recent years, there has been widespread interest in the design of microair vehicles (MAVs) for flapping flight with high-aspect ratio wings due to their high efficiency and energy savings.
Yue Wu   +3 more
doaj   +1 more source

Structural Analysis of a Dragonfly Wing [PDF]

open access: yes, 2010
Dragonfly wings are highly corrugated, which increases the stiffness and strength of the wing significantly, and results in a lightweight structure with good aerodynamic performance.
Jongerius, S.R., Lentink, D.
core   +2 more sources

Good vibrations for flapping-wing flyers

open access: yesScience Robotics, 2020
Studies of insect flight reveal how flapping-induced vibrations augment flight stability of tailless flapping-wing flyers.
openaire   +4 more sources

Research on the Flight Performance of Biomimetic Moth Based on Flapping Function Control

open access: yesApplied Sciences
Flapping flight is an important mode of insect flight, and its unique flapping motion pattern enables it to fly efficiently in complex environments. This paper takes a biomimetic moth flapping-wing aircraft as the research object and proposes a periodic ...
Yaxin Liu   +4 more
doaj   +1 more source

How wing compliance drives the efficiency of self-propelled flapping flyers

open access: yes, 2010
Wing flexibility governs the flying performance of flapping wing flyers. Here, we use a self-propelled flapping-wing model mounted on a ``merry go round'' to investigate the effect of wing compliance on the propulsive efficiency of the system.
Godoy-Diana, Ramiro, Thiria, Benjamin
core   +1 more source

Analytical Study on Lift Performance of a Bat-Inspired Foldable Flapping Wing: Effect of Wing Arrangement

open access: yesAerospace, 2022
In this work, we use a three-dimensional computational fluid dynamics (CFD) simulation to comprehend how the two wing arrangement variables, i.e., inner/outer wing proportion and mid-stroke dihedral, affect the lift characteristic of a bat-inspired span ...
Dawei Bie   +4 more
doaj   +1 more source

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