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Modeling capillary condensation hysteresis cycles in reconstructed porous media
Author(s) -
Štěpánek František,
Marek Miloš,
Adler Pierre M.
Publication year - 1999
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690450908
Subject(s) - hysteresis , capillary condensation , porous medium , condensation , capillary action , porosity , materials science , mechanics , chemical engineering , thermodynamics , chemistry , composite material , physics , engineering , adsorption , condensed matter physics
A computational algorithm for tracking liquid–vapor interfaces moving with curvature‐dependent velocity, based on the Gibbs energy formulation and the level‐set approach, is described. The algorithm is used for finding equilibrium distributions of condensate in several samples of 3‐D reconstructed porous media under varying relative saturation of the surrounding atmosphere. Primary and higher‐order hysteresis cycles are calculated and their dependence on various physico‐chemical parameters (temperature, wetting angle) as well as on geometrical properties of the porous medium is investigated. An explanation of the influence of the morphology of a porous medium on the character of corresponding hysteresis loops is provided.