English

Characteristic features of self-avoiding active Brownian polymers under linear shear flow

Soft Condensed Matter 2023-11-21 v1

Abstract

We present Brownian dynamics simulation results of a flexible linear polymer with excluded-volume interactions under shear flow in the presence of active noise. The active noise strongly affects the polymer's conformational and dynamical properties, such as the stretching in the flow direction and compression in the gradient direction, shear-induced alignment, and shear viscosity. In the asymptotic limit of large activities and shear rates, the power-law scaling exponents of these quantities differ significantly from those of passive polymers. The chain's shear-induced stretching at a given shear rate is reduced by active noise, and it displays a non-monotonic behavior, where an initial polymer compression is followed by its stretching with increasing active force.

Keywords

Cite

@article{arxiv.2311.11885,
  title  = {Characteristic features of self-avoiding active Brownian polymers under linear shear flow},
  author = {Arindam Panda and Roland G. Winkler and Sunil P. Singh},
  journal= {arXiv preprint arXiv:2311.11885},
  year   = {2023}
}

Comments

13 pages, 13 figures

R2 v1 2026-06-28T13:26:14.364Z