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Chapitre D'ouvrage Année : 2010

Modelling And Analysis Of Permeability Of Anisotropic Compressed Non-Woven Filters

Résumé

An existing geometrical pore-scale model for flow through isotropic spongelike media is adapted to predict flow through anisotropic non-woven glass fibre filters. Model predictions are compared to experimental results for the permeability obtained for a filter under different stages of compression to demonstrate the capability of the model to adjust to changes in porosity. The experimental data used are for a glass fibre paper with a uniform fibre diameter. The input parameters of the pore-scale model are the porosity, fibre diameter and some measure of the anisotropy between the in-plane and normal directions to the paper. Correlation between the predictions and the experimental results is satisfactory and provides confidence in the modelling procedure. It is shown that the permeability is very sensitive to changes in the level of anisotropy, i.e. the level of compression of the nonwoven material.
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Dates et versions

hal-00945331 , version 1 (12-02-2014)

Identifiants

  • HAL Id : hal-00945331 , version 1

Citer

J. Prieur Du Plessis, Sonia Woudberg, Laurence Le Coq. Modelling And Analysis Of Permeability Of Anisotropic Compressed Non-Woven Filters. Vafai, K. Porous Media and Its Applications in Science, Engineering and Industry, American Institute of Physics, pp.272--277, 2010. ⟨hal-00945331⟩
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