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

The best multiphase package?

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

Reply
 
LinkBack Thread Tools Display Modes
Old   July 17, 2001, 06:28
Default The best multiphase package?
  #1
Atholl
Guest
 
Posts: n/a
Has anyone got any thoughts on what they think is the best CFD package (i.e. ease of use, quality of results, postprocessing, etc.) for multiphase flow modelling? Thanks in advance!
  Reply With Quote

Old   July 19, 2001, 07:36
Default Re: The best multiphase package?
  #2
Kike
Guest
 
Posts: n/a
Dear Atholl

I think it is your own code, but, as your question is quite general, I will tell you more.

If you are looking for commercial packages you have a large list at this web page (see sponsors). I have used PHOENICS during my PhD. and it had worked perfectly in my cases. You can add it all the models you want. For instance solid volatilization models (if you are handling solids' combustion) or surface tension if you have two-phase flows.

If you are looking for free codes then try at Universities web pages. I suggest you our web page for two-phase flows free code: www.lmm.jussieu.fr/~zaleski/codes

Regards

Kike
  Reply With Quote

Old   July 19, 2001, 14:15
Default Re: The best multiphase package?
  #3
dia
Guest
 
Posts: n/a
I agree with you kike. currently, i'm developing my own code to solve two-phase flow problem-this is my ph.d.-, as a mathematician i've to do so. but i belive if i were an engineer i'll use commercial packages....

regards dia
  Reply With Quote

Old   July 20, 2001, 02:15
Default Re: The best multiphase package?
  #4
Astrid
Guest
 
Posts: n/a
The commercial package CFX-4 performs well. Using userfortran-routines you can add any model you like and change almost everything.

Good luck, Astrid
  Reply With Quote

Old   July 20, 2001, 05:25
Default Re: The best multiphase package?
  #5
George Bergantz
Guest
 
Posts: n/a
It really depends on what kind of applications you intend. Most vendors offer the standard Eulerian/Eulerian type of multiphase algorithm, but there may be significant differences on how they handle the whole mess of turbulence production or attenuation by particle gathering or dispersal. And if you have reactions that produce a phase that has a significant density difference with the carrier phase convergence can be very difficult to obtain.

Most codes of this type also do not have appropriate viscosity relationships for flows with more than a few volume percent particles. In fact the whole question of constitutive equations for multiphase flow is a black art unless both phases are fluid phases and even that is messy if there is surface tension.

Eulerian/Lagrangian multiphase is very cpu intensive unless the Stokes number is vanishing in which case the particles are fully coupled to the flow.

I don't mean to sound negative, only that it takes a bit of backgroudn reading to even decide which multiphase theory and model is right for your application. See book and papers by C. Crowe.
  Reply With Quote

Old   August 13, 2001, 09:15
Default Re: The best multiphase package?
  #6
Tobias Hirsch
Guest
 
Posts: n/a
I was doing two-phase flow calculations with CFX4 and Fluent5.5. If you want to define your own models by user defined functions I think CFX offers much more flexibility to do this.

Tobias
  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
Extend Project 1.6-ext Binary Release for Mac OS X hjasak OpenFOAM Announcements from Other Sources 26 November 5, 2013 17:50
OpenFoam 1.6-ext - RPM build errors preibie OpenFOAM 12 September 8, 2011 03:12
1.6-ext compilation flowris OpenFOAM 18 March 21, 2011 13:01
OpenFOAM 1.5.x package - CentOS 5.3 x86_64 linnemann OpenFOAM Installation 7 July 30, 2009 03:14
Errors running allwmake in OpenFOAM141dev with WM_COMPILE_OPTION%3ddebug unoder OpenFOAM Installation 11 January 30, 2008 21:30


All times are GMT -4. The time now is 05:26.