|April 5, 2012, 22:34||
Core-annulus of solid volume fraction in gas-solid Circulating fluidized bed
Join Date: Sep 2011
Posts: 21Rep Power: 5
I am simulating gas-solid flow in circulating fluidized bed.
in literature , nonuniform inlet can lead to a core-annulus solid volume fraction structure in radial profile.so i create a 6.5 jets inlet, which the 0.5 is from the center axis.
My problem is that i got the core-annulus structure, but the center has too big wiggling,which looks like resulted from the inlet. shown in the pic.
is there anyone has this experiences, how to solve the wiggling?
I am using e-e equation. and drag coefficient is from Syamlal O'Brien
the gas velocity is 3m/s and solid flux is 100kg/sm2
I just found increasing the gas velocity can make the wiggling relatively small but not much.
|fluidized bed, gas-solid flow|
|Thread||Thread Starter||Forum||Replies||Last Post|
|gas solid fluidizd bed with cfx||mohamad||CFX||5||July 28, 2010 15:15|
|gas solid fluidized bed with ansys cfx||mohamad||CFX||0||November 21, 2007 18:55|
|particle volume fraction in fluidized bed||gopinath bandari||CFX||0||October 6, 2006 03:26|
|Two-Phase Buoyant Flow Issue||Miguel Baritto||CFX||4||August 31, 2006 12:02|
|Gas pressure question||Dan Moskal||Main CFD Forum||0||October 24, 2002 22:02|