Spinodal decomposition in binary fluids under shear flow

被引：13

作者：

Wu, YN ^{[1
]}

Skrdla, H ^{[1
]}

Lookman, T ^{[1
]}

Chen, SY ^{[1
]}

机构：

[1] IBM CORP,THOMAS J WATSON RES CTR,YORKTOWN HTS,NY 10598

来源：

PHYSICA A | 1997年 / 239卷 / 1-3期

关键词：

spinodal decomposition; shear flow; pattern formation; phase separation; rheology; Langevin equation; phase transition;

D O I：

10.1016/S0378-4371(96)00497-9

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discuss the effects of shear rates on the structure, rheology and kinetics of phase separation in binary fluids through numerical Langevin simulations ill both two- and three-dimensions. Our major findings are as follows: (1) shear flow distorts the isotropy properties in normal spinodal decomposition. Under stronger shear, a string phase appears; (2) domains grow differently in directions parallel and perpendicular to the flow direction: (3) excess shear viscosities due to shear Bow have a characteristic peak as a function of shear rates, We compare our findings with the experimental data and simulation results which do not incorporate hydrodynamics.

引用

页码：428 / 436

页数：9

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