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

被引：0

作者：

G. Gonnella

A. Lamura

D. Suppa

机构：

[1] Istituto Nazionale per la Fisica della Materia (INFM),

[2] Unità di Bari,undefined

[3] and Dipartimento di Fisica dell'Università di Bari,undefined

[4] and Istituto Nazionale di Fisica Nucleare,undefined

[5] Sezione di Bari,undefined

[6] via Amendola 173,undefined

[7] 70126 Bari,undefined

[8] Italy,undefined

来源：

The European Physical Journal B - Condensed Matter and Complex Systems | 2000年 / 13卷

关键词：

PACS. 47.20.Hw Morphological instability; phase changes - 05.70.Ln Nonequilibrium and irreversible thermodynamics - 83.50.Ax Steady shear flows;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

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 damped as consequence of the vanishing of the mobility in the bulk phase.

引用

页码：169 / 174

页数：5