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Porosity variations in saline media caused by temperature gradients coupled to multiphase flow and dissolution/precipitation

Autor
Olivella, S.; Carrera, J.; Gens, A.; Alonso, E.
Tipus d'activitat
Article en revista
Revista
Transport in porous media
Data de publicació
1996-10-01
Volum
25
Número
1
Pàgina inicial
1
Pàgina final
25
DOI
https://doi.org/10.1007/BF00141260 Obrir en finestra nova
Resum
We present a theoretical-numerical investigation of porosity variations induced by temperature gradients in unsaturated saline media. It is known that temperature variations cause humidity variations which lead to liquid flow towards and vapour flow away from the hot source. When this phenomenon occurs in saline media, the liquid is salt saturated brine, so that evaporation causes salt precipitation and an ensuing porosity reduction. Condensation of water causes salt dissolution and porosity inc...
Paraules clau
brine, dissolution/precipitation, porosity, salt aggregate, temperature gradient, vapour flux
Grup de recerca
GHS - Grup d'Hidrologia Subterrània
MSR - Mecànica del Sòls i de les Roques

Participants