Non-equilibrium hydrodynamics of a rotating filament

Details Non-equilibrium hydrodynamics of a rotating filament Non-equilibrium hydrodynamics of a rotating filament

2008-03-21

arxiv.org/abs/0803.3168v1

Europhys. Lett. 75, 645 (2006)

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1209/epl/i2006-10155-0

The nonlinear dynamics of an elastic filament that is forced to rotate at its base is studied by hydrodynamic simulation techniques; coupling between stretch, bend, twist elasticity and thermal fluctuations is included. The twirling-overwhirling transition is located and found to be strongly discontinuous. For finite bend and twist persistence length, thermal fluctuations lower the threshold rotational frequency, for infinite persistence length the threshold agrees with previous analytical predictions.

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