Your browser doesn't support javascript.
loading
Breaking of non-Newtonian character in flows through a porous medium.
Chevalier, T; Rodts, S; Chateau, X; Chevalier, C; Coussot, P.
Afiliación
  • Chevalier T; Laboratoire Navier (ENPC-IFSTTAR-CNRS), Université Paris-Est, Champs sur Marne.
  • Rodts S; Laboratoire Navier (ENPC-IFSTTAR-CNRS), Université Paris-Est, Champs sur Marne.
  • Chateau X; Laboratoire Navier (ENPC-IFSTTAR-CNRS), Université Paris-Est, Champs sur Marne.
  • Chevalier C; IFSTTAR, Université Paris-Est, Champs sur Marne.
  • Coussot P; Laboratoire Navier (ENPC-IFSTTAR-CNRS), Université Paris-Est, Champs sur Marne.
Phys Rev E Stat Nonlin Soft Matter Phys ; 89(2): 023002, 2014 Feb.
Article en En | MEDLINE | ID: mdl-25353566
From NMR measurements we show that the velocity field of a yield stress fluid flowing through a disordered well-connected porous medium is very close to that for a Newtonian fluid. In particular, it is shown that no arrested regions exist even at very low velocities, for which the solid regime is expected to be dominant. This suggests that these results obtained for strongly nonlinear fluid can be extrapolated to any nonlinear fluid. We deduce a generalized form of Darcy's law for such materials and provide insight into the physical origin of the coefficients involved in this expression, which are shown to be moments of the second invariant of the strain rate tensor.
Asunto(s)
Buscar en Google
Añadir a Mi BVS
Imprimir
XML
PubMed Links

Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oscilometría / Reología / Modelos Estadísticos / Dinámicas no Lineales / Retroalimentación Tipo de estudio: Risk_factors_studies Idioma: En Revista: Phys Rev E Stat Nonlin Soft Matter Phys Asunto de la revista: BIOFISICA / FISIOLOGIA Año: 2014 Tipo del documento: Article Pais de publicación: Estados Unidos
Buscar en Google
Añadir a Mi BVS
Imprimir
XML
PubMed Links

Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oscilometría / Reología / Modelos Estadísticos / Dinámicas no Lineales / Retroalimentación Tipo de estudio: Risk_factors_studies Idioma: En Revista: Phys Rev E Stat Nonlin Soft Matter Phys Asunto de la revista: BIOFISICA / FISIOLOGIA Año: 2014 Tipo del documento: Article Pais de publicación: Estados Unidos