particles are not getting fluidized

Submitted by techblast333 on Fri, 03/09/2012 - 20:58

hello all,
Im working on gas-solid fluidization. column size is 0.11m*0.01m*1m. i have inserted 5000 particles with particle size 3mm(dia) and 1300 kg/m3 density. i kept gas inlet velocity to 4 m/s (../0/'U' file). After 5 s of simulation i visualized the results with paraview. It seems that particles are moving with in the packing but the total bed height is not increasing although i have taken gas velocity >1.5 Umf. Can anyone suggest what is the problem in the script or initial conditions. All the files containing the scripts are attached below. Any answer regarding this is really appreciable.

thanks.
Anoop

AttachmentSize
Binary Data CFD.tar_.gz9.74 MB
Binary Data DEM.tar_.gz33.3 MB