Engineering Mechanics

Proceedings Vol. 14 (2008)

ENGINEERING MECHANICS 2008

Copyright © 2008 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

 

Tesař V.
pages 242 - +22p., full text

A mechanism of aerodynamically excited vibration of a movable or elastic solid body was investigated and suggested for use in a number of fluidic (or mechano/fluidic) devices. The vibration is based on a phenomenon little known and so far practically not used, despite of its very old history. The effect leads to an alternating direction of a fluid force acting a movable object exposed to fluid flow. One of the directions is interesting: it is the very opposite to what an uninitiated observer may expect. Early investigations of this "paradox" by the present author in 1971 became recently of renewed interest because of the possible topical use in biosensors.

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