Mesoscopic lattice Boltzmann modeling of soft-glassy systems: Theory and simulations

被引：87

作者：

Benzi, R. ^{[1
,2
]}

Sbragaglia, M. ^{[1
,2
]}

Succi, S. ^{[3
]}

Bernaschi, M. ^{[3
]}

Chibbaro, S. ^{[4
]}

机构：

[1] Univ Roma Tor Vergata, Dept Phys, I-00133 Rome, Italy

[2] Univ Roma Tor Vergata, Ist Nazl Fis Nucl, I-00133 Rome, Italy

[3] CNR, Ist Applicaz Calcolo, I-00161 Rome, Italy

[4] Univ Roma 3, Dept Phys, I-00146 Rome, Italy

来源：

JOURNAL OF CHEMICAL PHYSICS | 2009年 / 131卷 / 10期

关键词：

GAS MIXTURES; KINETIC-THEORY; DYNAMICS; EQUATION; RHEOLOGY; FLOW; PARTICLES; BINARY; LIQUID; HYDRODYNAMICS;

D O I：

10.1063/1.3216105

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A multicomponent lattice Boltzmann model recently introduced [R. Benzi et al., Phys. Rev. Lett. 102, 026002 (2009)] to describe some dynamical behaviors of soft-flowing materials is theoretically analyzed. Equilibrium and transport properties are derived within the framework of a continuum free-energy formulation and checked against numerical simulations. Due to the competition between short-range interspecies repulsion and midrange intraspecies attraction, the model is shown to give rise to a very rich configurational dynamics of the density field, exhibiting numerous features of soft-flowing materials such as long-time relaxation due to caging effects, enhanced viscosity and structural arrest, aging under moderate shear, and shear-thinning flow above a critical shear threshold. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3216105]

引用

页数：16

共 86 条

[21]

DOI M, 1991, J CHEM PHYS, V95, P1242, DOI 10.1063/1.461156

[22]

Doi M., 1986, The Theory of Polymer Dynamics

[23] Foam mechanics at the bubble scale [J].

Durian, DJ .

PHYSICAL REVIEW LETTERS, 1995, 75 (26) :4780-4783

[24] DYNAMIC SIMULATION OF HYDRODYNAMICALLY INTERACTING PARTICLES [J].

DURLOFSKY, L ;

BRADY, JF ;

BOSSIS, G .

JOURNAL OF FLUID MECHANICS, 1987, 180 :21-49

[25] Re-entrant glass transition in a colloid-polymer mixture with depletion attractions [J].

Eckert, T ;

Bartsch, E .

PHYSICAL REVIEW LETTERS, 2002, 89 (12)

[26]

Evans DF., 1999, COLLOIDAL DOMAIN

[27]

Frankel D., 1996, UNDERSTANDING MOL SI

[28] EQUATIONS FOR GAS MIXTURES [J].

GOLDMAN, E ;

SIROVICH, L .

PHYSICS OF FLUIDS, 1967, 10 (9P1) :1928-&

[29]

Gross E.P., 1959, Physics of Fluids, V2, P432, DOI DOI 10.1063/1.1724415

[30] Slow, nondiffusive dynamics in concentrated nanoemulsions [J].

Guo, H. ;

Wilking, J. N. ;

Liang, D. ;

Mason, T. G. ;

Harden, J. L. ;

Leheny, R. L. .

PHYSICAL REVIEW E, 2007, 75 (04)

← 1 2 3 4 5 6 7 8 9 →