Imperial College London
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DrApostolosGeorgiadis

Faculty of Engineering, Department of Chemical Engineering

Honorary Research Fellow
 
 
 
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Contact

 

a.georgiadis07 Website

 
 
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Location

 

C610Roderic Hill BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Georgiadis:2013:10.1103/PhysRevE.88.033002,
author = {Georgiadis, A and Berg, S and Makurat, A and Maitland, G and Ott, H},
doi = {10.1103/PhysRevE.88.033002},
journal = {Physical Review E},
title = {Pore-scale micro-computed-tomography imaging: Nonwetting-phase cluster-size distribution during drainage and imbibition},
url = {http://dx.doi.org/10.1103/PhysRevE.88.033002},
volume = {88},
year = {2013}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We investigated the cluster-size distribution of the residual nonwetting phase in a sintered glass-bead porousmedium at two-phase flow conditions, by means of micro-computed-tomography (μCT) imaging with pore-scaleresolution. Cluster-size distribution functions and cluster volumes were obtained by image analysis for a range ofinjected pore volumes under both imbibition and drainage conditions; the field of view was larger thanthe porosity-based representative elementary volume (REV). We did not attempt to make a definition for atwo-phase REV but used the nonwetting-phase cluster-size distribution as an indicator. Most of the nonwettingphasetotal volume was found to be contained in clusters that were one to two orders of magnitude larger thanthe porosity-based REV. The largest observed clusters in fact ranged in volume from 65% to 99% of the entirenonwetting phase in the field of view. As a consequence, the largest clusters observed were statistically notrepresented and were found to be smaller than the estimated maximum cluster length. The results indicate thatthe two-phase REV is larger than the field of view attainable by μCT scanning, at a resolution which allows forthe accurate determination of cluster connectivity.
AU  - Georgiadis,A
AU  - Berg,S
AU  - Makurat,A
AU  - Maitland,G
AU  - Ott,H
DO  - 10.1103/PhysRevE.88.033002
PY  - 2013///
SN  - 1539-3755
TI  - Pore-scale micro-computed-tomography imaging: Nonwetting-phase cluster-size distribution during drainage and imbibition
T2  - Physical Review E
UR  - http://dx.doi.org/10.1103/PhysRevE.88.033002
UR  - http://hdl.handle.net/10044/1/27503
VL  - 88
ER  -
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