OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

Extension of the Euler/Euler formalism for numerical simulations of fluidized beds of Geldart A particles

Parmentier, Jean-François. Extension of the Euler/Euler formalism for numerical simulations of fluidized beds of Geldart A particles. PhD, Institut National Polytechnique de Toulouse, 2010

[img]
Preview
(Document in English)

PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
1MB

Official URL: http://ethesis.inp-toulouse.fr/archive/00001249/

Abstract

This work aims to increase the predictivity of the two-fluid model in gas-solid fluidized beds of Geldart A particles. The first part deals with the integration of physical phenomena into the two-fluid model: shear-induced collisions, lubrication between particles and inter-particular forces. The second part deals with the practical resolution of the two-fluid model using numerical codes. It is shown that bed expansion for Geldart A particles have a strong dependance on the mesh size used to compute the flow, leading to a major overestimation. The filtered approach is used and points up the filtered drag as the key of the problem. Two subgrid drag models are proposed and tested on both academic and laboratory configurations.

Item Type:PhD Thesis
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Laboratory name:
Research Director:
Simonin, Olivier
Statistics:download
Deposited By: admin admin

Repository Staff Only: item control page