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Diamantopoulos, Efstathios ; Durner, W. ; Harter, T.:
Prediction of capillary air-liquid interfacial area vs. saturation function from relationship between capillary pressure and water saturation.
In: Advances in Water Resources.
Bd. 97
(2016)
.
- S. 219-223.
ISSN 1872-9657
DOI: https://doi.org/10.1016/j.advwatres.2016.09.012
Abstract
This short communication investigates if the capillary air-liquid interfacial area vs. saturation relationship Alv(S) can be predicted from the capillary pressure vs. saturation relationship S(h), using the theoretical sample scale model of Diamantopoulos and Durner (2013, 2015). We selected three published experimental datasets, where S(h) and Alv(S) relationships had been measured for the same porous media. The sample scale model was fitted to the retention curve S(h) of each porous medium and then used to predict the air-liquid interfacial area Alv(S). We also included in the analysis the thermodynamic models of Leverett (1941) and Grant and Gerhard (2007). For two sandy materials and especially for high saturation values, the model predicted the capillary Alv(S) successfully, which was in one case given by a pore-network model simulation (Kibbey and Chen, 2012) and in the other case experimentally determined (Brusseau et al., 2006). For glass bead experiments, the contact angle needed to be fitted to properly describe the experimental Alv(S) curve.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | Air-water interfacial area; Saturation; Contact angle; Porous media; Unsaturated flow |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Lehrstuhl Bodenphysik Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Lehrstuhl Bodenphysik > Lehrstuhl Bodenphysik - Univ.-Prof. Dr. Efstathios Diamantopoulos |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften, Geologie |
| Eingestellt am: | 21 Mai 2026 06:30 |
| Letzte Änderung: | 21 Mai 2026 06:30 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/97263 |