Modeling capillary condensation hysteresis cycles in reconstructed porous media
✍ Scribed by František Štěpánek; Miloš Marek; Pierre M. Adler
- Publisher
- American Institute of Chemical Engineers
- Year
- 1999
- Tongue
- English
- Weight
- 466 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0001-1541
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✦ Synopsis
Abstract
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.