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Phase-ordering dynamics of binary mixtures with field-dependent mobility in shear flow

G. Gonnella·A. Lamura·D. Suppa
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Abstract

The effect of shear flow on the phase-ordering dynamics of a binary mixture with field-dependent mobility is investigated. The problem is addressed in the context of the time-dependent Ginzburg-Landau equation with an external velocity term, studied in self-consistent approximation. Assuming a scaling ansatz for the structure factor, the asymptotic behavior of the observables in the scaling regime can be analytically calculated. All the observables show log-time periodic oscillations which we interpret as due to a cyclical mechanism of stretching and break-up of domains. These oscillations are dumped as consequence of the vanishing of the mobility in the bulk phase.

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G. Gonnella, A. Lamura, D. Suppa. 1999-04-29. Phase-ordering dynamics of binary mixtures with field-dependent mobility in shear flow. https://doi.org/10.1007/s100510050020

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