3-DIMENSIONAL SIMULATION OF RANDOM PACKING AND PORE BLOCKING PHENOMENA DURING MICROFILTRATION

被引：20

作者：

KAWAKATSU, T ^{[1
]}

NAKAJIMA, M ^{[1
]}

NAKAO, S ^{[1
]}

KIMURA, S ^{[1
]}

机构：

[1] UNIV TOKYO,FAC ENGN,DEPT CHEM ENGN,BUNKYO KU,TOKYO 113,JAPAN

来源：

DESALINATION | 1995年 / 101卷 / 03期

关键词：

DEAD-END FILTRATION; MICROFILTRATION; 3-DIMENSIONAL SIMULATION; BLOCKING FILTRATION; CAKE FILTRATION; EQUAL-SIZED SPHERE; RHOMBOHEDRAL TETRAGONAL;

D O I：

10.1016/0011-9164(95)00023-U

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Random packing and pore blocking phenomena by equal-sized sphere were simulated assuming a three-dimensional packing structure based on rhombohedral tetragonal ordination. Sphere movements were determined with simple rules in accordance with contact patterns between spheres and Brownian motion. With the standard rule the void fraction was 0.37 which agrees with the value obtained with random close packing. The method was also useful for different types of packing since the void fraction varied from 0.26 to 0.97 when other rules were used. Transition mechanism from pore blocking to cake filtration was explained using sphere concentration as a parameter.

引用

页码：203 / 209

页数：7

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