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SUMMARY:Locomotion and Complex Fluids - Mike Shelley\, The Courant Institu
 te\,  New York University
DTSTART:20070514T121500Z
DTEND:20070514T131500Z
UID:TALK6941@talks.cam.ac.uk
CONTACT:jnm11
DESCRIPTION:A bacterial bath is a fascinating example of an active suspens
 ion\nwhere the forcing of the fluid microstructure drives larger-scale\ndy
 namics in space and time.  In joint work with David Saintillan\, we\nhave 
 adapted numerical tools for studying rigid rod suspensions to\nstudying th
 e dynamics of suspensions of self-locomoting rods.  Through\nour simulatio
 ns we demonstrate the instability of large-scale\norientational ordering (
 predicted theoretically by Ramaswamy and\nSinha)\, the persistence of shor
 t-range order\, study the role\nof Taylor dispersion in this system\, and 
 examine some of the effects\nof boundary conditions and differing swimmer 
 models.  If time permits\nI will also discuss recent work on the effect of
  fluid visco-elasticity\non the locomotion of an undulatory sheet.
LOCATION:MR5\, DAMTP
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