Europhys. Lett.
Volume 70, Number 4, May 2005
Page(s) 464 - 470
Section Atomic and molecular physics
Published online 15 April 2005
Europhys. Lett., 70 (4), pp. 464-470 (2005)
DOI: 10.1209/epl/i2005-10015-5

Polymers in linear shear flow: A numerical study

A. Celani1, A. Puliafito1, 2 and K. Turitsyn1, 3, 2

1  Institut Non Linéaire de Nice - UMR 6618 CNRS 1361 route des Lucioles, 06560 Valbonne, France
2  CNLS, Theoretical Division, Los Alamos National Laboratory Los Alamos, NM 87545, USA
3  Landau Institute for Theoretical Physics - Kosygina 2, Moscow 119334, Russia

received 27 January 2005; accepted in final form 22 March 2005
published online 15 April 2005

We study the dynamics of a single polymer subject to thermal fluctuations in a linear shear flow. The polymer is modeled as a finitely extendable nonlinear elastic (FENE) dumbbell. Both orientation and elongation dynamics are investigated numerically as a function of the shear strength, by means of a new efficient integration algorithm. The results are in agreement with recent experiments.

36.20.-r - Macromolecules and polymer molecules.
47.55.Kf - Multiphase and particle-laden flows.
82.35.Lr - Physical properties of polymers.

© EDP Sciences 2005