Chaotic behavior in electro-rotation

E Lemaire and L Lobry

Physica A: Statistical Mechanics and its Applications, 2002, vol. 314, issue 1, 663-671

Abstract: We study the dynamics of an insulating cylinder in a weakly conducting liquid when submitted to a DC electric field. The cylinder is free to rotate along its long axis which is perpendicular to the applied field. Above a threshold value of the electric field, the cylinder rotates in either direction with constant angular velocity. This instability is known as Quincke rotation and can be easily understood by considering the polarization induced by the free charges accumulation on the cylinder surface. Here we present preliminary experimental results which exhibit a chaotic dynamics of the cylinder for higher electric fields: the velocity is no longer constant and the rotation direction changes randomly. By taking into account the finite Maxwell–Wagner polarization relaxation time, we show that this chaotic behavior can be described by the Lorenz equations.

Keywords: Chaos; Low dimensional; Dielectric loss and relaxation; Polarization; Dielectric (search for similar items in EconPapers)
Date: 2002
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:314:y:2002:i:1:p:663-671

DOI: 10.1016/S0378-4371(02)01168-8

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