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 [ancien site de Basso-Cambo]
3 IMFT - Institut de mécanique des fluides de Toulouse
4 ONERA - The French Aerospace Lab [Toulouse]
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
Document type :
Conference papers
Complete list of metadatas

Cited literature [26 references]  Display  Hide  Download
https://hal-onera.archives-ouvertes.fr/hal-01065041
Contributor : Véronique Soullier <>
Submitted on : Wednesday, September 17, 2014 - 4:50:48 PM
Last modification on : Monday, July 8, 2019 - 10:54:04 AM
Long-term archiving on : Thursday, December 18, 2014 - 11:50:49 AM

File

DMAE13065.1374485050.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-01065041, version 1

Collections

ONERA | TDS-MACS | UNIV-HESAM | I2M-BX | INRA | UNIV-TLSE3

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⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

504

Files downloads

311

Contact

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