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Micro computed tomography images of capillary actions in rough and irregular granular materials

Lookup NU author(s): Dr Sadegh NadimiORCiD, Joao Mendes, Dr Agostino BrunoORCiD



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


The present work investigates the effect of both surface roughness and particle morphology on the retention behaviour of granular materials via X-ray micro-computed tomography (µCT) observations. X-ray µCT images were taken on two types of spherical glass beads (i.e. smooth and rough) and two different sands (i.e. natural and roughened). Each sample was subjected to drainage and soaking paths consisting in a multiphase ‘static’ flow of potassium iodine (KI) brine (wetting phase) and dry air (non-wetting phase). Tomograms were obtained at different saturation states ranging from fully brine saturated to air dry conditions with 6.2 μm voxel size resolution. The data acquisition and pre-processing are here described while all data, a total of 48 tomograms, are made publicly available. The combined dataset offers new opportunities to study the influence of surface roughness and particle morphology on capillary actions as well as supporting validation of pore-scale models of multiphase flow in granular materials.

Publication metadata

Author(s): Nadimi A, Mendes J, López A, Schröer L, Manoorkar A, Ellman A, Cnudde V, Bruno AW

Publication type: Article

Publication status: Published

Journal: Scientific Data

Year: 2024

Volume: 11

Online publication date: 16/01/2024

Acceptance date: 05/01/2024

Date deposited: 17/01/2024

ISSN (electronic): 2052-4463

Publisher: Nature Publishing Group


DOI: 10.1038/s41597-024-02925-w


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Funder referenceFunder name
European Union Horizon 2020 grant agreement No 101005611
Ghent University Special Research Fund
Research Foundation - Flanders