Orientational ordering in sheared inelastic dumbbells

Anki Reddy, K. ; Kumaran, V. ; Talbot, J. (2009) Orientational ordering in sheared inelastic dumbbells Physical Review E, 80 (3). 031304_1- 031304_7. ISSN 1063-651X

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Official URL: http://pre.aps.org/abstract/PRE/v80/i3/e031304

Related URL: http://dx.doi.org/10.1103/PhysRevE.80.031304


Using even driven simulations, we show that homogeneously sheared inelastic dumbbells in two dimensions are randomly orientated in the limit of low density. As the packing fraction is increased, particles first tend to orient along the extensional axis, and then as the packing fraction is further increased, the alignment shifts closer to the flow axis. The orientational order parameter displays a continuous increase with packing fraction and does not appear to exhibit a universal scaling with elongation. Except at the highest packing fractions, the orientational distribution function can be reconstructed with only the first coefficient of the Fourier expansion.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:18581
Deposited On:17 Nov 2010 09:33
Last Modified:06 Jun 2011 04:30

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