Pore space network characterization with sub-voxel definition |
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Authors: | Gianni Schena Stefano Favretto |
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Institution: | (1) Department of Civil and Environment Engineering, University of Trieste, P.le Europa, 1, Trieste, 34127, Italy |
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Abstract: | Morphological measurements in 3D for pore space characterization (connectivity pore-body/throat classification, shape factors,
virtual fluid intrusion) are based on computed intensive digital-thinning operations for skeletonization and medial axis extraction
from 3D digital images. We present an alternative method that is measurably faster and allows sub-voxel definition of the
pore space network. The method allows extracting—based on morphological considerations only—the centered and shortest stream-lines—i.e.,
the paths—to follow in order to go through the pore space from one given point to another and to exit. In addition the method
penalizes long and narrow pore-throats in favor of short stubby/ones—i.e., it has a built-in exemplification capacity. It
exploits well-established mathematical methods successfully applied in medical endoscopy. |
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Keywords: | Porous media Pore space Skeleton Fluid intrusion Permeability |
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