HYPROP measurements of the unsaturated hydraulic properties of a carbonate rock sample.

The unsaturated hydraulic properties provide important theoretical and practical information about fluid flow in soils and rocks for a range of soil, environmental and engineering applications. In this study we used the evaporation (HYPROP) and chilled-mirror dew point (WP4C) methods to estimate the water retention and unsaturated hydraulic conductivity curves of an Indiana Limestone carbonate rock sample. The obtained data were analyzed in terms of unimodal and bimodal VG (van Genuchten, 1980) and PDI (Peters et al., 2015) type functions. Bimodal functions were found to produce excellent descriptions for the unsaturated hydraulic data we measured, slightly better than the standard unimodal formulations. For our particular test using an Indiana Limestone rock sample, we did not find much improvement when accounting for film and corner flow using the PDI formulation, relative to the VG model. As far as we know, this is the first time the HYPROP methodology was applied to a rock sample.

Bibliographic Details

Main Authors:	LIPOVETSKY, T., ZHUANG, L., TEIXEIRA, W. G., BOYD, A., PONTEDEIRO, E. M., MORICONI, L., ALVES, J. L. D., COUTO, P., VAN GENUCHTEN, M. TH.
Other Authors:	TATIANA LIPOVETSKY, UFRJ; LUWEN ZHUANG, UTRECHT UNIVERSITY/SUN YAT-SEN UNIVERSITY; WENCESLAU GERALDES TEIXEIRA, CNPS; AUSTIN BOYD, UFRJ; ELIZABETH MAY PONTEDEIRO, UFRJ/UTRECHT UNIVERSITY; LUCA MORICONI, UFRJ; JOSÉ L. D. ALVES, UFRJ; PAULO COUTO, UFRJ; MARTINUS TH. VAN GENUCHTEN, UTRECHT UNIVERSITY/UNESP.
Format:	Artigo de periódico biblioteca
Language:	Ingles English
Published:	2021-01-12
Subjects:	Propriedades hidráulicas insaturadas, Método de evaporação HYPROP, Rocha carbonática, WP4C, Funções hidráulicas bimodais, Condutividade Hidráulica, Evaporação, Rocha,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1129225 https://doi.org/10.1016/j.jhydrol.2020.125706
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