Identificador persistente para citar o vincular este elemento:
http://hdl.handle.net/10662/19936
Títulos: | On the constancy of the free energy reduction caused by imbibition in porous media |
Autores/as: | Labajos Broncano, Luis Antequera Barroso, Juan Antonio González Martín, María Luisa Morales Bruque, José |
Palabras clave: | Imbibition;Capillary rise;Free energy;Porous media;Washburn’s equation;Imbibiciones;Ascenso capilar;Energía gratis;Medios porosos;Ecuación de Washburn |
Fecha de publicación: | 2004 |
Editor/a: | Elsevier |
Resumen: | The presents study brings to light that the free energy reduction per surface unit, Dg, which is considered as the driven force that leads the imbibition of liquids into porous media, does not show any dynamic behaviour during the rise of the liquids. Therefore, this quantity is a constant parameter that characterized the capillary rise processes. As a consequence, it has been also proved that, because of this fact, the liquid flow verifies the hypotheses that are needed in order to the results of the imbibition experiments can be analysed by Washburn’s equation. This study has been carried out by means of a new methodology based on the analysis of the velocity profile associated to the increase in the weight of the porous medium caused by the rise of the liquid. |
URI: | http://hdl.handle.net/10662/19936 |
ISSN: | 0032-5910 |
DOI: | 10.1016/j.powtec.2004.09.020 |
Colección: | DDCEM - Artículos DFIAP - Artículos DFSCA - Artículos |
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