Locomotion and Complex Fluids
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- Mike Shelley, The Courant Institute, New York University
- Monday 14 May 2007, 13:15-14:15
- MR5, DAMTP.
If you have a question about this talk, please contact jnm11.
A bacterial bath is a fascinating example of an active suspension
where the forcing of the fluid microstructure drives larger-scale
dynamics in space and time. In joint work with David Saintillan, we
have adapted numerical tools for studying rigid rod suspensions to
studying the dynamics of suspensions of self-locomoting rods. Through
our simulations we demonstrate the instability of large-scale
orientational ordering (predicted theoretically by Ramaswamy and
Sinha), the persistence of short-range order, study the role
of Taylor dispersion in this system, and examine some of the effects
of boundary conditions and differing swimmer models. If time permits
I will also discuss recent work on the effect of fluid visco-elasticity
on the locomotion of an undulatory sheet.
This talk is part of the Monday Mechanics Seminars (DAMTP) series.
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