CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM

bubbleFoam limitations

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

Reply
 
LinkBack Thread Tools Display Modes
Old   November 21, 2012, 22:34
Default bubbleFoam limitations
  #1
Member
 
Chris L
Join Date: Sep 2012
Posts: 36
Rep Power: 4
vbchris is on a distinguished road
I am currently using bubbleFoam in one of my projects.

I has read the wiki for this solver and was wondering if anyone knows of any work done in the following areas:

http://openfoamwiki.net/index.php/Bu...am_limitations

1) The diameter of the particles1 constituting the dispersed phase is assumed to be constant. Aggragation, breakage and coalescence phenomena are not accounted for

2) The drag coefficient is computed as a blend of the drag coefficients evaluated for each phase on the basis of the phase fractions, and no alternative drag models are available

Any info on this would be greatly appreciated!

Thanks,

Chris
vbchris is offline   Reply With Quote

Old   November 26, 2012, 12:49
Default
  #2
Senior Member
 
Kent Wardle
Join Date: Mar 2009
Location: Illinois, USA
Posts: 201
Rep Power: 11
kwardle is on a distinguished road
1) This is true. I know there have been a few people around (including myself) that have implemented population balance with breakup and coalescence--FYI, multiphaseEulerFoam IS set up to accept new non-constant diameter models though the only one implemented in the release version is isoThermalDiameter (vary bubble size with pressure).

2) This is true of bubbleFoam, but NOT true of twoPhaseEulerFoam. See twoPhaseEulerFoam/interfacialModels/dragModels.

-Kent
kwardle is offline   Reply With Quote

Old   November 26, 2012, 12:50
Default
  #3
Senior Member
 
Kent Wardle
Join Date: Mar 2009
Location: Illinois, USA
Posts: 201
Rep Power: 11
kwardle is on a distinguished road
On the issue of dragModels. I should also mention that multiphaseEulerFoam at least is able to compute the drag with a specified dispersed phase OR in a blended way. The desired method is defined in transportProperties.
kwardle is offline   Reply With Quote

Old   February 16, 2013, 18:11
Default
  #4
Member
 
Chris L
Join Date: Sep 2012
Posts: 36
Rep Power: 4
vbchris is on a distinguished road
Quote:
Originally Posted by kwardle View Post
there have been a few people around (including myself) that have implemented population balance with breakup and coalescence
Thanks for the reply Kent, did you implement a QMOM or Monte Carlo solution? This is something I would like to add to my current solver. Any chance you could point me to references/resources you found helpful?

-Chris
vbchris is offline   Reply With Quote

Old   February 28, 2013, 17:54
Default
  #5
Senior Member
 
Kent Wardle
Join Date: Mar 2009
Location: Illinois, USA
Posts: 201
Rep Power: 11
kwardle is on a distinguished road
I am working on reduced population balance models similar to the one used in:
Drumm, C.; Attarakih, M.; Hlawitschka, M. W. & Bart, H.-J. One-group reduced population balance model for CFD simulation of a pilot-plant extraction column Ind. Eng. Che. Res., 49, 3442-3451 (2010).
The basis for this is multiphaseEulerFoam which can do the Euler-Euler part for the population balance, but also can do the VOF-type sharp interface that I need for my particular multiphase application.

Luis Silva has implemented DQMOM solvers in OpenFOAM. One of his papers that talks of this is:
L. F. L. R. Silva and P. L. C. Lage, Development and implementation of a polydispersed multiphase flow model in OpenFOAM. Comp. & Chem. Eng. 35, pp. 26532666 (2011).
Daniele Marchisio has also developed an OpenFOAM PBE solver(s). There is one paper mentioning it here.
kwardle is offline   Reply With Quote

Reply

Thread Tools
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
bubbleFoam and tet mesh matt.mech.eng Open Source Meshers: Gmsh, Netgen, CGNS, ... 0 April 12, 2012 08:59
setting up a bubbleFoam case matt.mech.eng OpenFOAM Running, Solving & CFD 0 April 6, 2012 22:20
*.relax() in bubbleFoam (piso)? enoch OpenFOAM Running, Solving & CFD 2 February 28, 2012 11:41
Inputs for bubbleFoam rans2009 OpenFOAM 0 October 8, 2009 07:59
bubbleFoam rans2009 OpenFOAM 3 October 5, 2009 04:28


All times are GMT -4. The time now is 04:41.