Hi, I want a free jet code like GENMIX. I have a successful code to calculate methane turbulent jet diffusion flame, but it is developed on the base of GENMIX which is too old, I think, so I want to know who or how I can get a similar source code to calculate axisymmetric gas jet flow using k-epcilon turbulent model with or without chemical reactions. provide me any information you know and give me a hand. Any help will be appreciated.

thanks.

Without chemical reaction: try NPARC, Check this one:

http://www.grc.nasa.gov/www/wind/val.../axinoz01.html

Note:

K-e turbulence model will not be able to give you a good solution (round jet/plane jet anomaly). An explicit compressibility correction terms are needed to get a good approximation to the turbulent jet flow.

Regards

Danny

Dear Danny,

I would be interested if there is a free source code.

I am quite interested in the Spalart-Allmaras model and I think it will certainly save my time to implement the model if I can have an another code for reference, although the numerical results using SA model shown in that website did not match the experimental data very well.

Best wishes

Li Yang

To Li Yang:

I think if you are US citizen or use NPARC/WIND in US, you can get it for free. Several one and two equation turbulence models are available for use with NPARC code

Check Prof. Laney page: http://capella.colorado.edu/~laney/softaero.htm

I myself use open source code developed by Los Alamos US Department of Energy (CFDLIB). http://capella.colorado.edu/~laney/softgen.htm It is NOT user friendly code but it is well written code and it gives you a lot of flexibility to control your calculation.

Regards

Danny Tan

Dear Danny,

Thank you very much for the information you provided but I am afraid I am not a US citizen so I won't be able to get them for free.

The code CFDLIB you are using sounds very interesting to me. I would like to know if CFDLIB is of parallel processing function (using MPI ?). I guess it is a non-staggered grid code and I wonder if it is suitable for LES.

Your reply would be very much appreciated.

Best wishes

Li Yang

Li Yang:

Yes, you can use CFDLIB in parallel processor.

About Large Eddy Simulation, you better ask Dr. Kashiwa who is currently conducting research in turbulence modeling for CFDLIB. http://gnarly.lanl.gov/Cfdlib/Cfdlib.html

Regards

Danny Tan

Thank you very much, Danny.

Regards

Li Yang