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Titolo:
THE EFFECT OF SPATIAL CORRELATIONS ON THE ACCESSIBILITY CHARACTERISTICS OF 3-DIMENSIONAL CUBIC NETWORKS AS RELATED TO DRAINAGE DISPLACEMENTS IN POROUS-MEDIA
Autore:
IOANNIDIS MA; CHATZIS I; SUDICKY EA;
Indirizzi:
UNIV WATERLOO,DEPT CHEM ENGN WATERLOO N2L 3G1 ONTARIO CANADA UNIV WATERLOO,WATERLOO CTR GROUNDWATER RES,DEPT EARTH SCI WATERLOO N2L 3G1 ONTARIO CANADA
Titolo Testata:
Water resources research
fascicolo: 6, volume: 29, anno: 1993,
pagine: 1777 - 1785
SICI:
0043-1397(1993)29:6<1777:TEOSCO>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
MERCURY POROSIMETRY; PERCOLATION THEORY; SIMULATION; CURVES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
M.A. Ioannidis et al., "THE EFFECT OF SPATIAL CORRELATIONS ON THE ACCESSIBILITY CHARACTERISTICS OF 3-DIMENSIONAL CUBIC NETWORKS AS RELATED TO DRAINAGE DISPLACEMENTS IN POROUS-MEDIA", Water resources research, 29(6), 1993, pp. 1777-1785

Abstract

Percolation theory is used in this paper to study the general accessibility characteristics of bond site correlated networks in the presence or absence of spatial correlations among the sites. Spectral methodsare employed to generate networks in which the sites are spatially correlated according to exponential or Gaussian autocovariance functions. Monte Carlo simulations are performed for bond-correlated site percolation with and without trapping, as related to drainage-type displacements of water by oil (or air) and air by mercury, respectively. For the correlation modes studied, it is found that spatial correlations result in significant reduction of the site percolation threshold with aconcomitant modification of the site accessibility. However, the bondaccessibility characteristics and the bond percolation threshold are not significantly affected. The simulated drainage capillary pressure curves become more gradual and the residual wetting phase saturation associated with oil (or air)-water displacements is significantly decreased when spatial correlations among the pore bodies exist.

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Documento generato il 27/11/20 alle ore 02:08:42