Viscoelastic Properties of Dynamically Asymmetric Binary Fluids Under Shear Flow

Details Viscoelastic Properties of Dynamically Asymmetric Binary Fluids Under Shear Flow Viscoelastic Properties of Dynamically Asymmetric Binary Fluids Under Shear Flow

2003-10-09

arxiv.org/abs/cond-mat/0310228v1

Physics

Condensed Matter

Soft Condensed Matter

10 pages text, 9 figures

Scientific paper

10.1103/PhysRevE.70.011506

We study theoretically the viscoelastic properties of sheared binary fluids that have strong dynamical asymmetry between the two components. The dynamical asymmetry arises due to asymmetry between the viscoelastic stresses, particularly the bulk stress. Our calculations are based on the two-fluid model that incorporates the asymmetric stress distribution. We simulate the phase separation process under an externally imposed shear and compare the asymmetric case with the usual phase separation under a shear flow without viscoelastic effects. We also simulate the behavior of phase separated stable morphologies under applied shear and compute the stress relaxation.

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