Pattern formation by injection of air in a non-Brownian suspension - Archive ouverte HAL Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2005

Pattern formation by injection of air in a non-Brownian suspension

Résumé

We study the injection of air in a granular suspension. We use a linear Hele-Saw cell filled with a suspension which is displaced by air, leading to a Saffman-Taylor (fingering) instability. For the suspension, we use an iso-dense mixture where the fluid and the particles have the same density. The volume fraction of particles can thus be adjusted over a wide range. We discuss the question of an effective rheology inside the cell as well as the pattern formation as a function of the granular compacity. We finally report results on the finger width for stable fingers and the thresholds for their destabilization.

Dates et versions

hal-00162161 , version 1 (12-07-2007)

Identifiants

Citer

C. Chevalier, A. Lindner, E. Clement. Pattern formation by injection of air in a non-Brownian suspension. 2005. ⟨hal-00162161⟩
31 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More