Spatiotemporal rheochaos in nematic hydrodynamics

被引：56
作者：
Chakrabarti, B
Das, M
Dasgupta, C
Ramaswamy, S
Sood, AK
机构：
[1] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India
[2] JNCASR, Condensed Matter Theory Unit, Bangalore 560064, Karnataka, India
来源：
PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 05期
关键词：
D O I：
10.1103/PhysRevLett.92.055501
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Motivated by recent observations of rheochaos in sheared wormlike micelles, we study the coupled nonlinear partial differential equations for the hydrodynamic velocity and order-parameter fields in a sheared nematogenic fluid. In a suitable parameter range, we find irregular, dynamic shear banding and establish by decisive numerical tests that the chaos we observe in the model is spatiotemporal in nature.
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页数：4
相关论文
共 32 条
[21]  
Larson R. G., 1999, STRUCTURE RHEOLOGY C, V150
[22]   THEORY OF THE NONEQUILIBRIUM PHASE-TRANSITION FOR NEMATIC LIQUID-CRYSTALS UNDER SHEAR-FLOW [J].
OLMSTED, PD ;
GOLDBART, P .
PHYSICAL REVIEW A, 1990, 41 (08) :4578-4581
[23]   Coexistence and phase separation in sheared complex fluids [J].
Olmsted, PD ;
Lu, CYD .
PHYSICAL REVIEW E, 1997, 56 (01) :R55-R58
[24]   Estimation of intensive quantities in spatio-temporal systems from time-series [J].
Orstavik, S ;
Carretero-González, R ;
Stark, J .
PHYSICA D-NONLINEAR PHENOMENA, 2000, 147 (3-4) :204-220
[25]  
PANDE A, 2000, THESIS INDIAN I SCI
[26]   Chaotic orientational behavior of a nematic liquid crystal subjected to a steady shear flow -: art. no. 040702 [J].
Rienäcker, G ;
Kröger, M ;
Hess, S .
PHYSICAL REVIEW E, 2002, 66 (04) :4-040702
[27]   Chaotic and regular shear-induced orientational dynamics of nematic liquid crystals [J].
Rienäcker, G ;
Kröger, M ;
Hess, S .
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2002, 315 (3-4) :537-568
[28]   Dynamical behavior of a complex fluid near an out-of-equilibrium transition: Approaching simple rheological chaos [J].
Salmon, JB ;
Colin, A ;
Roux, D .
PHYSICAL REVIEW E, 2002, 66 (03) :1-031505
[29]  
SALMON JB, CONDMAT0307609
[30]   MEASUREMENT OF THE LYAPUNOV SPECTRUM FROM A CHAOTIC TIME-SERIES [J].
SANO, M ;
SAWADA, Y .
PHYSICAL REVIEW LETTERS, 1985, 55 (10) :1082-1085
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