3D X-Ray CT Images of Convective Mixing in Glass Beads Over Time

X-ray Computed Tomography images capture the three-dimensional temporal evolution of convective mixing between methanol-ethylene-glycol solutions and brine in a random bead pack. The dataset visualizes mixing patterns at a spatial resolution of about (2x2x2) mm³ across Rayleigh numbers (Ra) from 2000 to 5000. The British Geological Survey produced this data, which was last updated on 2026-04 09.

Use Cases

• Modeling convective mass transfer based on observed plume evolution stages.
• Analyzing the relationship between Rayleigh number and Sherwood number based on the described scaling (Sh = 0.025Ra).
• Comparing experimental convective mixing against numerical diffusive scenarios.
• Visualizing three-dimensional flow patterns arising from fluid mixing in porous media.

Strengths

• Provides non-invasive 3D imaging of a dynamic process with a stated spatial resolution of about (2x2x2) mm³.
• Experiments cover a defined range of Rayleigh numbers (Ra = 2000-5000).
• Analysis yields a quantified effective diffusion coefficient reported as almost two orders of magnitude larger than molecular diffusivity.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file formats are unknown, which may limit suitability assessment.

Provenance

Source

British Geological Survey (BGS)

Collection Method

Experimental data gathered using X-ray Computed Tomography.

Time Range

Temporal coverage is implied by the time-series imaging but specific dates are not provided.

Freshness

Last updated 2026-04-09 08:40:27.667571; freshness should be verified.

Geography

Spatial coverage is not specified; likely laboratory-scale.