Publication

Not gone with the wind: Active microscale flight with highly porous bristled wings

Pedro Miguel Nunes Pereira de Almeida Reis, Yuexia Luna Lin
2022
Journal Articles

Abstract

The finesse of sub-millimeter insect flight with comb-like bristled wings raises intriguing questions, not only on fluid-structure interactions (FSI) but also on the mechanical behavior of the underlying, highly porous structures. Farisenkov et al. characterized the morphology and kinematics of one of the smallest flying insects, the featherwing beetle Paratuposa placentis. Their simulations of this beetle in flight quantified crucial aspects of its aerodynamics, explaining why porous bristled wings enable flight and how they produce unexpected speeds and accelerations.

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https://infoscience.epfl.ch/entities/publication/eac056e3-47a3-420e-ad2e-b1324d8601f6

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Pedro Miguel Nunes Pereira de Almeida Reis, Yuexia Luna Lin
2022
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/eac056e3-47a3-420e-ad2e-b1324d8601f6

About this result

Related concepts (14)

Insect flight

Insects are the only group of invertebrates that have evolved wings and flight. Insects first flew in the Carboniferous, some 300 to 350 million years ago, making them the first animals to evolve flight. Wings may have evolved from appendages on the sides of existing limbs, which already had nerves, joints, and muscles used for other purposes. These may initially have been used for sailing on water, or to slow the rate of descent when gliding. Two insect groups, the dragonflies and the mayflies, have flight muscles attached directly to the wings.

Flying and gliding animals

A number of animals are capable of aerial locomotion, either by powered flight or by gliding. This trait has appeared by evolution many times, without any single common ancestor. Flight has evolved at least four times in separate animals: insects, pterosaurs, birds, and bats. Gliding has evolved on many more occasions. Usually the development is to aid canopy animals in getting from tree to tree, although there are other possibilities.

Fluid mechanics

Fluid mechanics is the branch of physics concerned with the mechanics of fluids (liquids, gases, and plasmas) and the forces on them. It has applications in a wide range of disciplines, including mechanical, aerospace, civil, chemical, and biomedical engineering, as well as geophysics, oceanography, meteorology, astrophysics, and biology. It can be divided into fluid statics, the study of fluids at rest; and fluid dynamics, the study of the effect of forces on fluid motion.

Related publications (12)

Not gone with the wind: Active microscale flight with highly porous bristled wings

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