[RASMB] frictional coefficient of rings?

[Peter Schuck]

Hi Karl,
there is work on hydrodynamic friction of rigid rings and doughnuts by J.B. 
Hubbard and J.F. Douglas, Phys. Rev. E 47 (1993) 2983 and references 
therein.  We've used expressions derived from that work for the ideal case 
of rigid planar rings formed from beads of equal diameter a, an 
approximation which we found to be within 6% of an experimental model made 
by rings from protein subunits (cryptophycin-induced tubulin rings) (Phys 
Rev Lett 93 (2004) 098106).
Peter



At 03:14 PM 9/8/2006, you wrote:
>Hello,
>
>Is there a more recent treatment of the frictional coefficient of toroids 
>than the Allison, Easterly and Teller Biopolymers paper (vol 19, 
>1475-1489) 1980?
>
>Thanks,
>
>Karl
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