The approach to steady state in microemulsions under shear flow

Details The approach to steady state in microemulsions under shear flow The approach to steady state in microemulsions under shear flow

2002-05-10

arxiv.org/abs/cond-mat/0205222v1

Physica A, 320 (2003) 97

Physics

Condensed Matter

Statistical Mechanics

14 pages, 3 figures. To appear on Physica A

Scientific paper

10.1016/S0378-4371(02)01655-2

We present an analitical study of the dynamical process of the approach to steady state for a driven diffusive system represented by the microemulsion phase of a ternary mixture. The external applied field is given by a plane Couette shear flow and the problem is studied within the framework of a time-dependent Ginzburg-Landau model. A Fokker-Planck equation for the probability distribution of the concentration fluctuations is developed in a self-consistent one-loop approximation and solved exactly, giving an analytical expression for the dynamic correlation functions of the system. For comparison to experimental work, we also show grey-scale plots of the scattering function at different times during the dynamical process for two different shear rates.

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