Analysis of unsteady Lagrangian and Eulerian characteristics of a liquid fluidized bed by Direct Numerical Simulation

Stéphane Vincent 1, 2 J.L. Estivalezes 3, 4 J.C. Brändle de Motta 3, 4 O. Simonin 3 O; Masbernat 2
1 I2M - Institut de Mécanique et d'Ingénierie de Bordeaux
2 LGC - Laboratoire de génie chimique
3 IMFT - Institut de mécanique des fluides de Toulouse
4 Toulouse - ONERA - The French Aerospace Lab
Abstract : The characterization of fluidized beds is still a challenging task for macroscopic modeling issues and industrial applications. The macroscopic models require to be fed with parameters or laws that are not well understood or even impossible to estimate as soon as the solid fraction is larger than 0.1. The aim of the present work is to investigate Direct Numerical Simulation [1] of unsteady particle flows in order to solve all the time and space scale of the flow and the particle and to allow for the estimate of unknown macroscopic or stochastic characteristics of the flow. In the DNS, the particles are fully resolved, i.e. the particle diameter is larger than the grid size and to the smallest hydrodynamic scale. A benchmark experimental fluidized bed [2] is simulated and analyzed in terms of macroscopic and Lagrangian characteristics. Comparisons of numerical solutions to measurements are achieved with success.
Keywords : DNS OF FLUIDIZED BED RESOLVED SCALE PARTICLE VISCOUS PENALTY METHOD
Type de document :
Communication dans un congrès
3rd International Conference on Turbulence and Interactions, Jun 2012, LA SALINES LES BAINS, France
Liste complète des métadonnées

Littérature citée [26 références]  Voir  Masquer  Télécharger
https://hal-onera.archives-ouvertes.fr/hal-01065041
Contributeur : Véronique Soullier <>
Soumis le : mercredi 17 septembre 2014 - 16:50:48
Dernière modification le : mercredi 28 mars 2018 - 14:16:10
Document(s) archivé(s) le : jeudi 18 décembre 2014 - 11:50:49

Fichier

DMAE13065.1374485050.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-01065041, version 1

Collections

UNIV-TLSE3 | ONERA | TDS-MACS

Citation

Stéphane Vincent, J.L. Estivalezes, J.C. Brändle de Motta, O. Simonin, O; Masbernat. Analysis of unsteady Lagrangian and Eulerian characteristics of a liquid fluidized bed by Direct Numerical Simulation. 3rd International Conference on Turbulence and Interactions, Jun 2012, LA SALINES LES BAINS, France. 〈hal-01065041〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

382

Téléchargements de fichiers

176

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD