CFD modelling of the effect of capillary pressure on retention behaviour of water menisci at inter-particle contacts

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dc.contributor.authorLópez García, Alejandro
dc.contributor.authorBruno, Agostino Walter
dc.contributor.authorNadimi, Sadegh
dc.date.accessioned2025-09-11T14:47:54Z
dc.date.available2025-09-11T14:47:54Z
dc.date.issued2021-06-07
dc.date.updated2025-09-11T14:47:54Z
dc.descriptionPonencia presentada en la Powders & Grains 2021 – 9th International Conference on Micromechanics on Granular Media, celebrada de forma virtual el 5, 13, 21, 29 de julio y el 6 de agosto de 2021es
dc.description.abstractThis paper presents a Computational Fluid Dynamics (CFD) model on the effect of capillary pressure on the retention behaviour of a granular material. The model proposes an unprecedented CFD insight into the onset of liquid menisci at the inter-particles contact under varying hydraulic conditions. The present work models the material grains as smooth spherical particles that define a porous network filled by two interstitial fluids: air and silicon oil. The numerical model has been subsequently validated against experimental measurements of the degree of saturation at different capillary pressures taken by Dullien et al. [F.A. Dullien, C. Zarcone, I.F. MacDonald, A. Collins, R.D. Bochard. J. Colloid Interface Sci. 127, 2 (1989)] in a system of smooth glass beads flooded with silicon oil. Results from the numerical simulations confirm the good capability of the model to reproduce the experimental retention behaviour of the granular material. Finally, the present paper laid the basis for future CFD studies on the effect of various factors (e.g. hydraulic hysteresis, surface roughness and/or grain shape) on the capillary pressure acting at the inter-particle contact.en
dc.identifier.citationLópez, A., Bruno, A. W., & Nadimi, S. (2021). CFD modelling of the effect of capillary pressure on retention behaviour of water menisci at inter-particle contacts. Powders and Grains 2021 - 9th International Conference on Micromechanics on Granular Media. https://doi.org/10.1051/EPJCONF/202124909008
dc.identifier.doi10.1051/EPJCONF/202124909008
dc.identifier.urihttps://hdl.handle.net/20.500.14454/3603
dc.language.isoeng
dc.publisherEDP Sciences
dc.rights© The Authors, published by EDP Sciences
dc.titleCFD modelling of the effect of capillary pressure on retention behaviour of water menisci at inter-particle contactsen
dc.typeconference paper
dcterms.accessRightsopen access
oaire.citation.titlePowders and Grains 2021 - 9th International Conference on Micromechanics on Granular Media
oaire.licenseConditionhttps://creativecommons.org/licenses/by/4.0/
oaire.versionVoR
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