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Flapping dynamics of a flexible filament

Title:

Flapping dynamics of a flexible filament

Ait Abderrahmane, H. and Paidoussis, M. and Fayed, M. and Ng, Hoi Dick (2011) Flapping dynamics of a flexible filament. Physical Review E, 84 (6). ISSN 1539-3755

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Official URL: http://dx.doi.org/10.1103/PhysRevE.84.066604

Abstract

This paper investigates the dynamics of the flapping regime of a filament placed in a two-dimensional soap-film flow for different filament lengths and flow speeds. It was found that the onset of flapping is quasiperiodic, with the main flapping amplitude and frequency modulated by low-amplitude, low-frequency oscillation. At higher flow velocities, the oscillation becomes chaotic. The transition to chaos occurs via the quasiperiodic route to chaos. A new bistability phenomenon was discovered in which the system alternates between the stretched-straight and oscillatory states, which is here referred to as “switching oscillation.” Unlike some previously reported forms of bistability, in this case the system alternates between the two states continuously, without any external perturbation.

Divisions:Concordia University > Faculty of Engineering and Computer Science > Mechanical and Industrial Engineering
Item Type:Article
Refereed:Yes
Authors:Ait Abderrahmane, H. and Paidoussis, M. and Fayed, M. and Ng, Hoi Dick
Journal or Publication:Physical Review E
Date:2011
ID Code:974141
Deposited By:ANDREA MURRAY
Deposited On:14 Jun 2012 12:23
Last Modified:14 Jun 2012 12:23
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