Titre du document / Document title

Transport and sedimentation of solid particles in Bénard hexagonal cells

Auteur(s) / Author(s)

CERISIER P. ⁽¹⁾ ; PORTERIE B. ⁽¹⁾ ; KAISS A. ⁽¹⁾ ; CORDONNIER J. ⁽¹⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ Polytech'Marseille (IUSTI - CNRS UMR 6595), Technopôle de Château-Gombert, 5 rue Enrico Fermi, 13453 Marseille, FRANCE

Résumé / Abstract

The motion of particles moving under gravity in the velocity field of a liquid in a Bénard hexagonal cell is studied experimentally and numerically for Stokes flow conditions. We then explain the settlement of particlesin the centers of cells to form a regular quincunx. It is found that sedimentation also occurs preferentially along the lines connecting the centers of adjacent cells to form a triangle deposition tessellation. Finally, it is explained why particles occupy the central part. of each convective cell while the peripheral part of the cell quickly becomes limpid. Numerical results are in agreement with the experimental observations of Bénard and those of the present study.

Revue / Journal Title

The European physical journal. E, Soft matter    ISSN  1292-8941 

Source / Source

2005, vol. 18, n^o1, pp. 85-93 [9 page(s) (article)] (19 ref.)

Langue / Language

Anglais

Editeur / Publisher

EDP Sciences, Les Ulis, FRANCE  (2000) (Revue)

Mots-clés anglais / English Keywords

Aluminium

;

Silicone oil

;

Bénard cell

;

Solid particle

;

Sedimentation

;

Transport properties

;

Mots-clés français / French Keywords

Aluminium

;

Huile silicone

;

Cellule Bénard

;

Particule solide

;

Sédimentation

;

Propriété transport

;

Mots-clés espagnols / Spanish Keywords

Aluminio

;

Aceite silicona

;

Célula Benard

;

Partícula sólida

;

Sedimentación

;

Propiedad transporte

;

Localisation / Location

INIST-CNRS, Cote INIST : 799 E, 35400013545372.0090