Orientational ordering in sheared inelastic dumbbells.
Phys Rev E Stat Nonlin Soft Matter Phys
; 80(3 Pt 1): 031304, 2009 Sep.
Article
em En
| MEDLINE
| ID: mdl-19905107
ABSTRACT
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.
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MEDLINE
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En
Revista:
Phys Rev E Stat Nonlin Soft Matter Phys
Assunto da revista:
BIOFISICA
/
FISIOLOGIA
Ano de publicação:
2009
Tipo de documento:
Article