The effect of gas slip on pressure drop and deposition of submicron particles in fibrous filters

被引：1

作者：

Kirsh, V. A. ^{[1
]}

Shabatin, A. V. ^{[1
]}

Senchikhin, I. N. ^{[1
]}

Semenov, S. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Leninskii Pr 31, Moscow 119071, Russia

来源：

COLLOID JOURNAL | 2016年 / 78卷 / 04期

关键词：

NANOPARTICLES; SIMULATION; NUMBERS; FLOW;

D O I：

10.1134/S1061933X16040098

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：

The effect of gas slip at fibers on the drag to a flow and the deposition of submicron particles in model filters with a tree-dimensional flow field has been considered. The average values of the drag force and the efficiency of diffusion collection of particles with finite sizes in a double hexagonal three-dimensional model filter taken as a standard uniform filter have been calculated as depending on the packing density of fibers and the Knudsen number. It has been shown that, in the region of the sizes of the most penetrating particles, under preset conditions, and at specified filter parameters, the obtained collection efficiency values agree with the results of calculations performed by empirical formulas for a model fan filter. Moreover, formulas derived for a planar flow taking into account the slip effect are applicable to highly porous filters.

引用

页码：465 / 471

页数：7

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