Unsteady aerodynamics of a model bristled wing in rapid acceleration motion
Yu Kai Wu,Yan Peng Liu,Mao Sun +2 more
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This article is published in Physics of Fluids.The article was published on 2021-11-01 and is currently open access. It has received 8 citations till now. The article focuses on the topics: Acceleration & Aerodynamics.read more
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Active learning of tandem flapping wings at optimizing propulsion performance
TL;DR: An optimization framework based on the active learning method is proposed, which aims to quickly determine the conditions of tandem flapping wings for optimal performance in terms of thrust or efficiency, and it is found that the time-average thrust of the hind flapping wing increases with the frequency.
Journal ArticleDOI
The wing-wing interaction mechanism of bristled wing pair in fling motion
Yusheng Wu,Mao Sun,Yanpeng Liu +2 more
TL;DR: In this paper , detailed flow around each bristle numerically and revealed the interaction mechanism of two bristled wings in the fling motion was obtained, and the results showed that the vertical force of the bristled wing is similar to that of the corresponding flat-plate wings, but the drag of the wing is much smaller.
Journal ArticleDOI
Aerodynamics and three-dimensional effect of a translating bristled wing at low Reynolds numbers
Wen-Jay Liu,Mao Sun +1 more
TL;DR: In this article , a 3D model of the bristled wing was constructed to numerically investigate the detailed flow field and the aerodynamic force of the wing, and it was shown that the 3D effect at low Re increases the drag of the fly compared with that of the corresponding 2D wing.
Journal ArticleDOI
Aerodynamics and three-dimensional effect of a translating bristled wing at low Reynolds numbers
Wen-Jay Liu,Mao Sun +1 more
TL;DR: In this paper , a 3D model of the bristled wing was constructed to numerically investigate the detailed flow field and the aerodynamic force of the wing, and it was shown that the 3D effect at low Re increases the drag of the fly compared with that of the corresponding 2D wing.
Journal ArticleDOI
Aerodynamics of two parallel bristled wings in low Reynolds number flow
Yu Kai Wu,Yan Peng Liu,Mao Sun +2 more
TL;DR: In this paper , the aerodynamic forces and flows of two simplified bristled wings experiencing such a motion, compared with the case of membrane wings (flat-plate wings), were studied to see if there is any advantage in using the bristled wing.
References
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Quick Estimates of Flight Fitness in Hovering Animals, Including Novel Mechanisms for Lift Production
TL;DR: In this article, the average lift coefficient, Reynolds number, the aerodynamic power, the moment of inertia of the wing mass and the dynamic efficiency in animals which perform normal hovering with horizontally beating wings are derived.
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On the force and moment on a body in an incompressible fluid, with application to rigid bodies and bubbles at high and low reynolds numbers
TL;DR: In this paper, an analysis of the force and moment exerted on a rigid body in unsteady motion in a uniform incompressible, viscous or inviscid fluid is made, and integral formulae are derived which express the forces and moments in terms of the velocity and vorticity of the fluid and the velocity of the body.
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The steady flow of viscous fluid past a sphere and circular cylinder at small reynolds numbers
S. Tomotika,T. Aoi +1 more
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On unsteady surface forces, and sound produced by the normal chopping of a rectilinear vortex
TL;DR: In this article, an analysis of the sound produced when a rectilinear vortex is cut at right angles to its axis by a non-lifting airfoil of symmetric section is presented.
Journal ArticleDOI
Fluid-dynamic characteristics of a bristled wing.
TL;DR: The bristled wing of a thrips cannot be explained in terms of increased fluid-dynamic forces, because it is a little smaller than those on the solid wing.