| Issue |
Europhys. Lett.
Volume 75, Number 4, August 2006
|
|
|---|---|---|
| Page(s) | 645 - 651 | |
| Section | Interdisciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i2006-10155-0 | |
| Published online | 19 July 2006 | |
Non-equilibrium hydrodynamics of a rotating filament
Physics Department, Technical University Munich - 85748 Garching, Germany
Received:
5
May
2006
Accepted:
29
June
2006
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.
PACS: 87.15.-v – Biomolecules: structure and physical properties / 47.20.Ky – Nonlinearity, bifurcation, and symmetry breaking / 47.63.mf – Low-Reynolds-number motion
© EDP Sciences, 2006
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