期刊
COMPUTATIONAL MATERIALS SCIENCE
卷 44, 期 3, 页码 867-875出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.commatsci.2008.06.006
关键词
Curvature estimation; Condensed phase interface; Digital image analysis; Porous rock; Curvature-driven processes
资金
- Norwegian Research Council
- ConocoPhillips and the Ekofisk Coventurers
- TOTAL
- ENI
- StatoilHydro
- Petoro
- COREC
In this paper a method for the estimation of the curvature along a condensed phase interface is presented. In a previous paper in this journal [J.W. Bullard, E.J. Garboczi, W.C. Carter, E.R. Fuller Jr., Computational Materials Science 4 (1995) 103-116] a mathematical relationship was established between this curvature and a template disk located at a given point along the interface. The portion of the computed area of the template disk covering one of the phases was shown to be asymptotically linear in the curvature. instead of utilizing this relationship, an empirical approach was proposed in Bullard et al. in order to compensate for discrete uncertainties. In this paper, we show that this linear relationship can be used directly along the interface avoiding the empirical approach proposed earlier. Modifications of the algorithm are however needed, and with good data smoothing techniques, our method provides good quantitative curvature estimates. (c) 2008 Elsevier B.V. All rights reserved.
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