CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

twoPhaseEulerFoam (gas-solid fluidized bed)

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Search this Thread Display Modes
Old   November 13, 2021, 16:05
Question twoPhaseEulerFoam (gas-solid fluidized bed)
New Member
Hamed Hoorijani
Join Date: May 2019
Posts: 13
Rep Power: 5
Hamedhoorijani is on a distinguished road
Hello everyone.
I'm doing a simulation of a gas-solid fluidized bed using twoPhaseEulerFoam of OpenFOAM. I built my simulation case based on the fluidized bed tutorial of the OpenFOAM. Now I have a problem with the case that I don't have the exact values of the alphaMax and alphaMinFriction from the experiments, but I know based on the literature and particles size it should be somewhere between 0.58-0.62.
For the alphaMinFriction I don't know its relation with the characteristics of the particles but I know almost everyone considers a 0.5 value for this parameter. ( If anyone has a clue about the relation of its value with the characteristics of the particle I would like to know.)
For some reason, if I set the value of the alphaMax at 0.95 the pressure drop and the value of the minimum fluidization velocity obtained are right but if I set it to 0.6, I get an increasing trend for the pressure drop with increasing the inlet gas velocity.

I'll appreciate it if anyone could guide me on how to fix this problem. for your consideration, I attach my case to this post.
Thanks alot
Attached Files
File Type: zip (18.3 KB, 2 views)
Hamedhoorijani is offline   Reply With Quote


alphamax, kinetic theory, openfoam, simulation, twophaseeulerfoam

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
twoPhaseEulerFoam: sudden crash hcen OpenFOAM Running, Solving & CFD 18 September 29, 2020 04:04
twoPhaseEulerFoam validation OpenFOAM 4.1 jiejie OpenFOAM Running, Solving & CFD 4 April 20, 2019 04:06
twoPhaseEulerFoam fluidized bed wrong results FabianB OpenFOAM Running, Solving & CFD 0 June 14, 2017 04:48
Is twoPhaseEulerFoam applicable to 3D cases / delivering erroneous results? ThomasV OpenFOAM 0 November 11, 2013 09:10
twoPhaseEulerFoam freemankofi OpenFOAM 0 May 23, 2011 17:24

All times are GMT -4. The time now is 23:42.