par Smirnov, NICKOLAY 
;Legros, Jean Claude ;Nikitin, V. F.;Istasse, Eric ;Norkin, A.V.;Shevtsova, Valentina ;Kudryavtseva, O.V.
Référence Microgravity, science and technology, 12, 1, page (23-35)
Publication Publié, 1999
;Legros, Jean Claude ;Nikitin, V. F.;Istasse, Eric ;Norkin, A.V.;Shevtsova, Valentina ;Kudryavtseva, O.V.Référence Microgravity, science and technology, 12, 1, page (23-35)
Publication Publié, 1999
Article révisé par les pairs
| Résumé : | The paper deals with experimental and theoretical investigations of fluid filtration in porous media influenced by capillary forces. The problem is important for developing soil remediation technologies based on in situ flushing of light non-aqueous phase liquids by water or solutions. Capillary forces arising at the interface in immiscible fluids displacement play an important role in the process. A set of microgravity experiments was carried out on capillary driven filtration in the absence of other mass forces that contributed to studying the sensitivity of capillary forces to variations of governing parameters. Theoretical investigations enabled to introduce dimensionless parameters characterizing the capillary forces in multi-phase filtration and to make forecasts for the dynamics of capillary driven filtration in the inhomogeneously permeable medium. Experimental investigations confirmed the theoretical predictions and made it possible to determine quantitative values for the creepability Ψ-factor. |
