Gas permeability in rarefied flow conditions for characterization of mineral membrane support

Abstract : Gas Permeability Measurement Technique (GPMT) has the advantage of being a non-destructive method, which is efficient in characterizing filtration membranes. Ceramic filtration membranes consist of successive layers of micro (support) to nano size (skin) pores. When gas flows through such a small scale structure, the molecular mean free path becomes comparable to the pore size. The Slip flow model, validated to describe the gas transport properties under rarefied flow conditions in a microchannel, is extended to porous media. The porous structure is modeled as a cluster of several identical cylindrical channels.
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Submitted on : Monday, October 28, 2019 - 9:04:25 AM
Last modification on : Tuesday, October 29, 2019 - 1:48:03 AM

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C. Savaro, J.P. Bonnet, M.V. Johansson, P. Perrier, I. Graur, et al.. Gas permeability in rarefied flow conditions for characterization of mineral membrane support. European Journal of Mechanics - B/Fluids, Elsevier, 2020, 79, pp.44-53. ⟨10.1016/j.euromechflu.2019.07.005⟩. ⟨hal-02335012⟩

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