ORIENTATIONAL RELAXATION IN A COLLOIDAL SUSPENSION OF SPHERES

被引:27
作者
FELDERHOF, BU [1 ]
JONES, RB [1 ]
机构
[1] QUEEN MARY & WESTFIELD COLL, DEPT PHYS, LONDON E1 4NS, ENGLAND
关键词
D O I
10.1103/PhysRevE.48.1084
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
We study orientational relaxation in a colloidal suspension of spheres on the basis of the gene Smoluchowski equation. The time dependence of the polarization correlation function is characterized by a wave-vector- and frequency-dependent rotational-diffusion tensor. In the absence of hydrodynamic interactions the short-time decay of the correlation function is governed by free translational and rotational diffusion. This observation leads to a simple expression for the high-frequency limit of the rotational-diffusion tensor. We also derive a concise and transparent expression for the wave-vector- and frequency-dependent rotational-diffusion tensor of a semidilute suspension.
引用
收藏
页码:1084 / 1090
页数:7
相关论文
共 25 条
[1]  
ADELMAN SA, 1975, ADV CHEM PHYS, V31, P103
[2]   SIMULATION OF POLAR AND POLARIZABLE FLUIDS [J].
ALDER, BJ ;
POLLOCK, EL .
ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 1981, 32 :311-329
[3]  
BAGCHI B, 1991, ADV CHEM PHYS, V80, P1
[4]  
Berne B. J., 1976, DOVER BOOKS PHYS SER
[5]  
BOTTCHER CJF, 1978, THEORY ELECTRIC POLA, V2
[6]  
Brilliantov N. V., 1989, Soviet Physics - Doklady, V34, P55
[7]   A MOLECULAR THEORY OF COLLECTIVE ORIENTATIONAL RELAXATION IN PURE AND BINARY DIPOLAR LIQUIDS [J].
CHANDRA, A ;
BAGCHI, B .
JOURNAL OF CHEMICAL PHYSICS, 1989, 91 (03) :1829-1842
[8]   SHORT-TIME DIFFUSION-COEFFICIENTS AND HIGH-FREQUENCY VISCOSITY OF DILUTE SUSPENSIONS OF SPHERICAL BROWNIAN PARTICLES [J].
CICHOCKI, B ;
FELDERHOF, BU .
JOURNAL OF CHEMICAL PHYSICS, 1988, 89 (02) :1049-1054
[9]   LIQUID DYNAMICS AND INELASTIC SCATTERING OF NEUTRONS [J].
DEGENNES, PG .
PHYSICA, 1959, 25 (09) :825-839
[10]   CLUSTER-EXPANSION OF THE DIFFUSION KERNEL OF A SUSPENSION OF INTERACTING BROWNIAN PARTICLES [J].
FELDERHOF, BU ;
JONES, RB .
PHYSICA A, 1983, 121 (1-2) :329-344