HYDRODYNAMIC DISPERSION IN NETWORKS OF CAPILLARIES OF RANDOM PERMEABILITY

被引：10

作者：

CHARLAIX, E

GAYVALLET, H

机构：

[1] Laboratoire de Physique, Ecole Normale Superieurede Lyon, Lyon, 69364

来源：

EUROPHYSICS LETTERS | 1991年 / 16卷 / 03期

关键词：

D O I：

10.1209/0295-5075/16/3/007

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Hydrodynamic dispersion in networks of capillaries of random permeabilities is calculated with an exact method for various widths of the permeability distribution. When scaled with an adequate dispersion length L(d), the dependence of the dispersion coefficient D on the Peclet number Pe is independent of disorder. Results show the relation between dispersion and flow rate fluctuations, and are consistent with a percolation model for wide permeability distribution. They are in good agreement with experimental data obtained for sandstone and sintered glass beads.

引用

收藏

页码：259 / 264

页数：6

相关论文

共 11 条

[1] HOPPING CONDUCTIVITY IN DISORDERED SYSTEMS [J].

AMBEGAOKAR, V ;

HALPERIN, BI ;

LANGER, JS .

PHYSICAL REVIEW B-SOLID STATE, 1971, 4 (08) :2612-+

[2]

Bear J., 1971, DYNAMICS FLUIDS PORO, Vfirst

[3]

CHARLAIX E, 1987, TRANSPORT POROUS MED, V2, P31, DOI 10.1007/BF00208535

[4] HYDRODYNAMIC DISPERSION AND PORE GEOMETRY IN CONSOLIDATED ROCK [J].

GIST, GA ;

THOMPSON, AH ;

KATZ, AJ ;

HIGGINS, RL .

PHYSICS OF FLUIDS A-FLUID DYNAMICS, 1990, 2 (09) :1533-1544

[5] TRACER DISPERSION IN SINTERED GLASS-BEADS WITH A BIDISPERSE SIZE DISTRIBUTION [J].

HULIN, JP ;

CHARLAIX, E ;

PLONA, TJ ;

OGER, L ;

GUYON, E .

AICHE JOURNAL, 1988, 34 (04) :610-616

[6] THEORY OF DYNAMIC PERMEABILITY AND TORTUOSITY IN FLUID-SATURATED POROUS-MEDIA [J].

JOHNSON, DL ;

KOPLIK, J ;

DASHEN, R .

JOURNAL OF FLUID MECHANICS, 1987, 176 :379-402

[7] TRANSPORT AND DISPERSION IN RANDOM NETWORKS WITH PERCOLATION DISORDER [J].

KOPLIK, J ;

REDNER, S ;

WILKINSON, D .

PHYSICAL REVIEW A, 1988, 37 (07) :2619-2636

[8]

NOETINGER B, IN PRESS TRANSP PORO

[9] TRANSFER-MATRIX ALGORITHM FOR CONVECTION-BIASED DIFFUSION [J].

ROUX, S ;

MITESCU, C ;

CHARLAIX, E ;

BAUDET, C .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1986, 19 (11) :L687-L692

[10] DISPERSION DUE TO MOLECULAR DIFFUSION AND MACROSCOPIC MIXING IN FLOW THROUGH A NETWORK OF CAPILLARIES [J].

SAFFMAN, PG .

JOURNAL OF FLUID MECHANICS, 1960, 7 (02) :194-208