The effect of the flow field recalculation on fibrous filter loading: a numerical simulation

被引：41

作者：

Karadimos, A ^{[1
]}

Ocone, R ^{[1
]}

机构：

[1] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

来源：

POWDER TECHNOLOGY | 2003年 / 137卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

aerosol; fibre; filter;

D O I：

10.1016/S0032-5910(03)00132-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We present a simple model for the loading process of aerosol particles on fibrous filters with the aim to show the influence that the flow recalculation around a single fibre has on the complete loading process, up to the final clogging of the filter. At each loading stage (i.e., at any given degree of particle deposition), the change of shape of the fibre is presented, and information on the flow field around a fibre and the filter efficiency are obtained. The effect of the flow recalculation on the filter efficiency is shown; the single fibre efficiency is proven to be overestimated when the effect of further deposition is neglected. To perform the study, we have developed a CFD code and we have combined it with particle trajectory simulations. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：109 / 119

页数：11

共 19 条

[1]

Anderson J. D., 1995, Computational Fluid Dynamics, V206

[2] 3-DIMENSIONAL NUMERICAL-SIMULATION OF THE DEPOSITION OF POLYDISPERSE AEROSOL-PARTICLES ON FILTER FIBERS - EXTENDED CONCEPT AND PRELIMINARY-RESULTS [J].

BAUMGARTNER, H ;

LOFFLER, F .

JOURNAL OF AEROSOL SCIENCE, 1987, 18 (06) :885-888

[3]

BOURIS D, 1997, THESIS NATL TU ATHEN

[4]

Brown R.C., 1993, AIR FILTRATION INTEG, DOI DOI 10.1016/0021-8502(95)90072-1

[5]

Davies CharlesNorman., 1973, Air filtration

[6] Lattice-Boltzmann simulation of gas-particle flow in filters [J].

Filippova, O ;

Hanel, D .

COMPUTERS & FLUIDS, 1997, 26 (07) :697-712

[7]

FILIPPOVA O, 1996, J AEROSOL SCI, V27, pS627

[8]

Heinsohn R.J., 1999, Sources and Control of Air Pollution

[9] EXPERIMENTAL RESULTS OF SOLID MONODISPERSE PARTICLE CLOGGING OF FIBROUS FILTERS [J].

JAPUNTICH, DA ;

STENHOUSE, JIT ;

LIU, BYH .

JOURNAL OF AEROSOL SCIENCE, 1994, 25 (02) :385-393

[10] SIMULATION OF THE GROWING PROCESS OF A PARTICLE DENDRITE AND EVALUATION OF A SINGLE FIBER COLLECTION EFFICIENCY WITH DUST LOAD [J].

KANAOKA, C ;

EMI, H ;

MYOJO, T .

JOURNAL OF AEROSOL SCIENCE, 1980, 11 (04) :377-&

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