Flow of a capsule through a constriction : application to cell filtration - Archive ouverte HAL
Article Dans Une Revue Journal de Physique III Année : 1993

Flow of a capsule through a constriction : application to cell filtration

A. Leyrat-Maurin
  • Fonction : Auteur
Agnès Drochon
D. Barthès-Biesel
  • Fonction : Auteur

Résumé

The motion of a freely suspended capsule (liquid drop surrounded by a deformable membrane) forced to squeeze through an axisymmetric constriction smaller than its initial dimensions is studied by means of a numerical model based on boundary integrals. The flow is driven by a constant pressure difference. The suspending liquid and internal capsule viscosities are equal. It is found that the maximum energy loss is due to entrance effects rather than to the flow in the pore itself. The role of the membrane rigidity can be predicted.

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jpa-00248971 , version 1 (04-02-2008)

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A. Leyrat-Maurin, Agnès Drochon, D. Barthès-Biesel. Flow of a capsule through a constriction : application to cell filtration. Journal de Physique III, 1993, 3 (5), pp.1051-1056. ⟨10.1051/jp3:1993181⟩. ⟨jpa-00248971⟩

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