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

Free CFD code with implementation of Menter's k-omega SST model

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

Like Tree5Likes
  • 2 Post By nikola_m
  • 3 Post By nikola_m

Reply
 
LinkBack Thread Tools Display Modes
Old   October 1, 2012, 06:14
Default Free CFD code with implementation of Menter's k-omega SST model
  #1
New Member
 
Nikola Mirkov
Join Date: Mar 2009
Location: Belgrade, Serbia
Posts: 18
Rep Power: 8
nikola_m is on a distinguished road
Hello everyone!

As many of you I learned CFD from Ferziger and Peric book. Following the book there's CAFFA code in couple of versions.
Since I really like Menter's SST model I decided to make a version of the code that implements it available to other people.

So, if you visit this page:

https://sourceforge.net/projects/caffasst/

you may download the code with an implementation of this model and play around with it.

Features are:
  • Implementation is based on newer (2003) version of the model, see this ref. Menter, F. R., Kuntz, M., and Langtry, R., "Ten Years of Industrial Experience with the SST Turbulence Model," Turbulence, Heat and Mass Transfer 4, ed: K. Hanjalic, Y. Nagano, and M. Tummers, Begell House, Inc., 2003, pp. 625 - 632.
  • An interpretation of Automatic Wall BC's for omega (see papers by Menter&Esch)
  • Both Tecplot and VTK output

I will further develop the code and probably make a 3D unstructured version in the future with implementation of the models like DES...

I will write about developing the code on my blog http://www.laturbolenza.com

On the sourceforge page you will find my email so you can send me comments and suggestions!



Have fun!
Far and ebrahim27 like this.
nikola_m is offline   Reply With Quote

Old   November 9, 2012, 10:39
Default New version of caffa-sst
  #2
New Member
 
Nikola Mirkov
Join Date: Mar 2009
Location: Belgrade, Serbia
Posts: 18
Rep Power: 8
nikola_m is on a distinguished road
Hello everyone, I'm back!

And the new version of the caffs-sst code is here:

It's been a month since I've uploaded caffa-sst, and the feedback was awesome!

That's why I decided that developing this code further is worthwhile.

What is the idea of the whole project?

Well, Ferziger and Peric is a good book, but it lacks some development which took place in the meanwhile. I (and many others) would really like to read the new edition and have a new companion code. caffa-sst is intended to be exactly that!

My idea is to develop a simple code in FORTRAN which will keep people up-to-date with some new approaches in Finite Volume incompressible CFD.
We have plenty of things to do before being able to compare ourselves with e.g. OpenFOAM. Still caffa-sst has it virtues - it will be simple, easy to upgrade to your own needs.

What is new in this version?

  • Cell centered gradients can now be calculated by both Gauss and unweighted Least-Squares. Least-Squares procedure is done by QR decomposition realized via Gramm-Schmidt (ref.Anderson&Bohnus).
  • Now we have wider choice for convective schemes. Using Flux Limiter approach (Waterson & Deconinck Journal of Computational Physics, 224 (2007) pp. 182-207 ) I added MUSCL, SMART, UMIST. The methodology used is quite general, so I expect soon we'll have some two dozen different schemes
  • Output files are now in Tecplot, VTK, GMESH format
I have also added AUTHORS file, so anyone who contributes will be listed there.

Enjoy computing and send some feedback! (impressions, bugs, etc...)

Nikola
Far, ebrahim27 and JR22 like this.
__________________
www.laturbolenza.com
nikola_m is offline   Reply With Quote

Reply

Tags
k-omega model, open-source code, sst komega, sst model, two-equation models

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
hypersonic cfd free code??? inginer OpenFOAM 18 May 31, 2013 08:49
Feasiblity of CFD model for Real-Time applications la mimi Main CFD Forum 2 January 28, 2007 05:49
Help needed in recommending a free CFD code Simon Main CFD Forum 1 October 2, 2006 07:30
Recommendation for free cfd code Karsten Main CFD Forum 2 November 2, 2005 09:47
where can i find such free CFD code? euler Main CFD Forum 7 June 27, 2005 13:54


All times are GMT -4. The time now is 18:26.