Tumbling motion of a single chain in shear flow: a crossover from Brownian to non-Brownian behavior.

@article{Kobayashi2010TumblingMO,
  title={Tumbling motion of a single chain in shear flow: a crossover from Brownian to non-Brownian behavior.},
  author={Hideki Kobayashi and Ryoichi Yamamoto},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  year={2010},
  volume={81 4 Pt 1},
  pages={041807}
}
We present the numerical results for the dynamics of a single chain in steady shear flow. The chain is represented by a bead-spring model and the smoothed profile method is used to accurately account for the effects of thermal fluctuations and hydrodynamic interactions acting on beads due to host fluids. It was observed that the chain undergoes tumbling motions and that its dimensionless frequency F=6pietasigma3nu/kBT depends only on the Peclet number Pe with a power law F proportional to… CONTINUE READING

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