EULER-LAGRANGE/DEM SIMULATION OF SHALLOW DENSE FLUIDIZED BED DYNAMIC AND APPLICATION TO WOOD GASIFICATION

摘要

We present an unsteady Euler-Lagrange 3D method of shallow dense fluidized bed dynamic for an application to the simulation of wood gasification in a bubbling fluidized bed. The gas phase is modeled as a continuum using 3D Navier-Stokes equations and the solid phase is modeled by a Discrete Element Method (DEM) using a soft-sphere approach for the particle collision dynamic. The model is validated using previous experimental results carried out in the laboratory.