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Defining a novel pore-body to pore-throat "Morphological Aspect Ratio" that scales with residual non-wetting phase capillary trapping in porous media

Andersson, Linnea; Herring, Anna; Schlüter, Steffen; Wildenschild, Dorthe


We introduce a new method for defining a pore-body to pore-throat aspect ratio from segmented 3D image data, based on a connectivity metric applicable to porous media with widely varying pore-space connectivity and pore-space morphology. The ‘Morphological Aspect Ratio’ (MAR) is identified from the pore-space connectivity, using the Euler number (χ) as a function of a pore-space size defined by a morphological opening (erosion and dilation) of the pore space. We show that residual non-wetting...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
Source: Advances in Water Resources
DOI: 10.1016/j.advwatres.2018.10.009


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