Computation of Interfacial Areas, Common Line ...

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XVI International Conference on Computational Methods in Water Resources (CMWR-XVI) Ingeniørhuset

Computation of Interfacial Areas, Common Line Lengths and Interfacial Curvatures from Experimentally Derived Data
Paper
Author:James McClure <jemcclur@email.unc.edu> (University of North Carolina at Chapel Hill)
David Adalsteinsson <david@email.unc.edu> (University of North Carolina at Chapel Hill)
Dorthe Wildenschild <wildend@geo.oregonstate.edu> (Oregon State University)
Casey Miller <casey_miller@unc.edu> (University of North Carolina at Chapel Hill)
Presenter:James McClure <jemcclur@email.unc.edu> (University of North Carolina at Chapel Hill)
Date: 2006-06-18     Track: Special Sessions     Session: Pore-Scale Modelling: New Developments And Applications
DOI:10.4122/1.1000000401
DOI:10.4122/1.1000000402

Microscale investigation of porous medium systems contributes to our understanding of macroscopic systems at a fundamental level and is expected to play an important role in the formulation of macroscopic models. We present an overview of methods designed to obtain accurate estimates of interfacial areas, common line lengths, and interfacial curvatures for general porous medium data sets. We then describe how these methods can be applied to experimentally generated data, examining data sets obtained using x-ray micro-tomography as an example. Detailed discussion of pertinent issues is provided, including manipulation of raw data to obtain an optimal form for input data, the impact of smoothing operations, and resolution necessary to obtain reliable estimates of variables of interest.