Nonequilibrium structure of concentrated colloidal fluids under steady shear : leading-order response

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2007
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Henrich, Oliver
Pfeifroth, Oskar
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The flow-induced microstructural distortions of dense colloidal dispersions under steady shearing are derived within a recent first-principles approach to the nonlinear rheology of colloidal fluids and glasses. The stationary structure factor is discussed to leading orders in shear rate dot {gamma } . We find that shear affects the stationary structure whenever the dressed Peclet/Weissenberg number mathit {Pe}=dot {gamma }tau becomes appreciable; here τ is the structural or α-relaxation time. Close to vitrification, this predicts significantly larger shear distortions than expected from considering the bare Peclet number Pe0; it compares dot {gamma } with the diffusion time of a colloid at infinite dilution.

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ISO 690HENRICH, Oliver, Oskar PFEIFROTH, Matthias FUCHS, 2007. Nonequilibrium structure of concentrated colloidal fluids under steady shear : leading-order response. In: Jornal of Physics: Condensed Matter. 2007, 19, 205132. Available under: doi: 10.1088/0953-8984/19/20/205132
BibTex
@article{Henrich2007Noneq-4956,
  year={2007},
  doi={10.1088/0953-8984/19/20/205132},
  title={Nonequilibrium structure of concentrated colloidal fluids under steady shear : leading-order response},
  volume={19},
  journal={Jornal of Physics: Condensed Matter},
  author={Henrich, Oliver and Pfeifroth, Oskar and Fuchs, Matthias},
  note={Article Number: 205132}
}
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