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Applicable Analysis
An International Journal
Volume 89, 2010 - Issue 6
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Original Articles

Effective medium model for flow through beds of porous cylindrical fibres

Pages 833-848 | Received 01 Sep 2009, Accepted 17 Jan 2010, Published online: 18 May 2010
 

Abstract

We have used effective medium model for beds of circular cylindrical porous fibres in order to estimate the overall bed permeability (OBP). It is assumed that a representative circular porous cylindrical fibre is inside a fluid envelope beyond which effective medium is used. Both inside the cylindrical fibre and in the effective medium, Brinkman equation is used, however of different permeabilities and in the fluid envelope Stokes equation is used. The OBP corresponding to the porous fibres is estimated when the flow direction is perpendicular to the axis of the cylindrical fibres as well as parallel to the fibres. This in turn is used to estimate the OBP corresponding to a collection of porous cylindrical fibres that are randomly oriented. We have compared the results with some existing literature.

AMS Subject Classifications:

Acknowledgements

The author thanks Prof. Wolfgang L. Wendland for his support and valuable suggestions. Also, the author acknowledges the Fellowship by the Alexander von Humboldt Foundation, Germany.

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