J T Padding et al 2005 J. Phys.: Condens. Matter 17 S3393 doi:10.1088/0953-8984/17/45/027
J T Padding1, A Wysocki2, H Löwen2 and A A Louis1
Show affiliationsWe show how to implement stick boundary conditions for a spherical colloid in a solvent that is coarse-grained by the method of stochastic rotation dynamics. This allows us to measure colloidal rotational velocity auto-correlation functions by direct computer simulation. We find quantitative agreement with Enskog theory for short times and with hydrodynamic mode-coupling theory for longer times. For aqueous colloidal suspensions, the Enskog contribution to the rotational friction is larger than the hydrodynamic one when the colloidal radius drops below 35 nm.
Issue 45 (16 November 2005)
Received 13 October 2005
Published 28 October 2005
J T Padding et al 2005 J. Phys.: Condens. Matter 17 S3393
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