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

Sadegh Nadimi*, Joao Mendes, Alejandro López-Carresi, Laurenz Schröer, Sojwal Manoorkar, Sharon Ellman, Veerle Cnudde, Agostino Walter Bruno

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Article number78
Number of pages7
JournalScientific data
Issue number1
Publication statusPublished - 16 Jan 2024

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