Particle deposition in porous media: Analysis of hydrodynamic and weak inertial effects

被引：46

作者：

Frey, JM ^{[1
]}

Schmitz, P ^{[1
]}

Dufreche, J ^{[1
]}

Pinheiro, IG ^{[1
]}

机构：

[1] IMFT, GEMP, UMR CNRS INP UPS 5502, F-31400 Toulouse, France

来源：

TRANSPORT IN POROUS MEDIA | 1999年 / 37卷 / 01期

关键词：

non-Brownian particle; particle capture; probability density; hydrodynamics; inertial impaction;

D O I：

10.1023/A:1006546717409

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We have studied the transport and capture of non-Brownian particles in porous media, when the particles are mainly submitted to hydrodynamic and weak inertial effects. Visualization experiments have been performed using several models of porous media which consist of transparent etched networks of interconnected channels. Typical particle deposits have been observed at the corners of the grains of the porous medium. Their shape and their orientation were dependent on flow rate and on the anisotropy of the flow field. A trajectory analysis model has been applied to a porous medium made of a doubly periodic array of rectangular grains very close to the experimental model. This numerical model has been used to localize particle deposits and to determine particle capture efficiency on the grains over a range of low Stokes numbers, grain aspect ratios and flow-field anisotropy ratios. The results have been interpreted in terms of shape of particle deposits and compared successfully to experimental observations.

引用

页码：25 / 54

页数：30

共 27 条

[21]

SCHMITZ P, 1994, IN PRESS P JOURN NUM

[22]

SCHMITZ P, 1996, P 7 WORLD FILTR C BU

[23] DEPOSITION OF NON-BROWNIAN PARTICLES UNDER COLLOIDAL FORCES [J].

SPIELMAN, LA ;

CUKOR, PM .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1973, 43 (01) :51-65

[24] ADVANCES IN DEEP BED FILTRATION [J].

TIEN, C ;

PAYATAKES, AC .

AICHE JOURNAL, 1979, 25 (05) :737-759

[25] PHYSICOCHEMICAL ASPECTS OF PARTICLE REMOVAL IN DEPTH FILTRATION [J].

TOBIASON, JE ;

OMELIA, CR .

JOURNAL AMERICAN WATER WORKS ASSOCIATION, 1988, 80 (12) :54-64

[26] HYDROSOL DEPOSITION IN GRANULAR BEDS - AN EXPERIMENTAL-STUDY [J].

VAIDYANATHAN, R ;

TIEN, C .

CHEMICAL ENGINEERING COMMUNICATIONS, 1989, 81 :123-144

[27] Stokes flow through an array of rectangular fibers [J].

Wang, CY .

INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 1996, 22 (01) :185-194

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