[wangqiuxiao]

hi, I need to use FGM combustion model to simulate swirl combustion in gas turbine burner, but openfoam does not have this model.
does anyone have implemented FGMFoam combustion model in openfoam? could you give me some suggestions , or share your code? thank you ver much.

[wangqiuxiao]

does anyone have experience with implementation of FGMfoam combustion model in openfoam

[wangqiuxiao]

Originally Posted by wangqiuxiao

hi, I need to use FGM combustion model to simulate swirl combustion in gas turbine burner, but openfoam does not have this model.
does anyone have implemented FGMFoam combustion model in openfoam? could you give me some suggestions , or share your code? thank you ver much.

Please Some body help! thanks

[wangqiuxiao]

does anyone have experience with implementation of FGMfoam combustion model in openfoam

[dlahaye]

- flamelet based solver; https://openfoamwiki.net/index.php/E...n/flameletFoam

- tutorial by students of Hakan Nillson: FGM Foam by Chalmers University: http://www.tfd.chalmers.se/~hani/kur...rt_FGMFoam.pdf

- beta-PDF is defined in term of the Gamma function
boost library: #include <boost/math/special_functions/gamma.hpp> see https://www.boost.org/doc/libs/1_73_...ma/tgamma.html

- beta-PDF integration: https://github.com/flameletFoam/flam...anteraReader.C

[kont87]

Originally Posted by dlahaye

- flamelet based solver; https://openfoamwiki.net/index.php/E...n/flameletFoam

- tutorial by students of Hakan Nillson: FGM Foam by Chalmers University: http://www.tfd.chalmers.se/~hani/kur...rt_FGMFoam.pdf

- beta-PDF is defined in term of the Gamma function
boost library: #include <boost/math/special_functions/gamma.hpp> see https://www.boost.org/doc/libs/1_73_...ma/tgamma.html

- beta-PDF integration: https://github.com/flameletFoam/flam...anteraReader.C

I’m afraid the first link is not working? Has anybody tried and made it work?
Thanks!

[dlahaye]

The first link works fine for me. What is your issue exactly?

FGM in OpenFoam is used various groups. Given the nature of the code and the research, the code is possibly still considered in stage of development.

[kont87]

Originally Posted by dlahaye

The first link works fine for me. What is your issue exactly?

FGM in OpenFoam is used various groups. Given the nature of the code and the research, the code is possibly still considered in stage of development.

I’m sorry, I meant the second link from Chalmers university. As I downloaded the files and put them in correct folders, while running Allwmake script, It throws an error saying that the file ‘reactionThermo’ does not exist. And couple of other compilation errors follow after.

[dlahaye]

This confirms that a public domain variant of an FGM in OpenFOAM is still in development.

It might be valuable to distinguish between compilation and runtime error.

The file constant/reactionThermo can probably copied from another tutorial.

[kont87]

Originally Posted by dlahaye

This confirms that a public domain variant of an FGM in OpenFOAM is still in development.

It might be valuable to distinguish between compilation and runtime error.

The file constant/reactionThermo can probably copied from another tutorial.

I made it work, however, as I was going over the code, realized that (If not mistaken) It does not solve for variances of the progress variable/mixture fraction, although it says otherwise...

[Han Yu]

Originally Posted by dlahaye

- flamelet based solver; https://openfoamwiki.net/index.php/E...n/flameletFoam

- tutorial by students of Hakan Nillson: FGM Foam by Chalmers University: http://www.tfd.chalmers.se/~hani/kur...rt_FGMFoam.pdf

- beta-PDF is defined in term of the Gamma function
boost library: #include <boost/math/special_functions/gamma.hpp> see https://www.boost.org/doc/libs/1_73_...ma/tgamma.html

- beta-PDF integration: https://github.com/flameletFoam/flam...anteraReader.C

Hello, sir!
Sorry for the interruption. It is mentioned on page 12 of the Chalmers University documentation that FGMModel needs to be downloaded from the course homepage. Could you please provide a download link? Thank you so much.
Best regards,
Han Yu

[dlahaye]

1/ We would need to ask Prof. Hakan Nilsson at Chalmers University for the code.

2/ Alternatively, there is flameletFoam at https://openfoamwiki.net/index.php/E...n/flameletFoam with discussion in this forum on how to bring it to more recent OpenFoam versions.

[Sandeep lamba]

https://www.tfd.chalmers.se/~hani/ku...chael_Bertsch/


Here is the link for FGM solver.

[dlahaye]

Thx for the input.

The beta-PDF in boost might not required in case processing of flamelets is performed outside of the OpenFoam environment.

More importantly, I find a good documentation on how to implement an FGM method in OpenFoam to be missing. I made a start in Section 20 of https://github.com/ziolai/software I am happy to extend it with input provided.

[killua1915]

Don't know if this is a correct a place to ask this and if this is not then please redirect me to correct forum.


I am trying to compile FGMFoam on my machine but I am getting errors. Any idea on how to resolve this.


The log file when I am following direction given in report is attached with name log_Allwmake_tutorial and the log file when I try to compile case files which comes with tutorial is attached with name log_Allwmake_base.
log_Allwmake_tutorial.txt

log_Allwmake_base.txt


I am running OpenFOAMv2406 on WSL.

[Colin_BC]

Hi,

I recently worked on getting FGMFoam to work on v2312 and managed to make it run. The compiling issues come from FGMFoam being made for an older version on a different branch (v7). I still had one error in FGMFoamPost.C where it reads if useProgressVariableVariance is true (around line 120). Since the current model doesn't seem to solve for the variances anyway, as mentioned in a previous post, I commented the problematic section and it's working fine for the test case. If you want to solve the variances as intended in Likun Ma's thesis, you'll need to add the equations to the solver and uncomment/solve the problematic section in FGMFoamPost.C. Before compiling, it is necessary to source bashrc in /src.

Also, after running FGMFoam and FGMFoamPost, I get the following message :
"[stack trace]
=============
#1 Foam::sigSegv::sigHandler(int)malloc_consolidate() : unaligned fastbin chunk detected
Abandon "
It doesn't stop the simulation and the results of the test case look fine, so I am not sure what this message is about. Please let me know if you have an idea.

Link to repository : https://github.com/ColinBCampeau/FGMFoam-v2312.git

[killua1915]

Hi Collin,


I have recently compiled FGMFoam solver. The way I resolved this issue by modifying library name in src folder. I will advise you to run valgrind command to check if there are any classes which have same name as original classes.

[dlahaye]

Congrats for the successful compilation.

I wonder: do you manage to make the solver run? If so, what input file do you employ.

[killua1915]

Yes, I can run the solver for SandiaD Flame tutorial. Right now, I am using FGM table provided in tutorial by Michael Bertsch. I am looking into how can I create FGM table for my own reactions.

[dlahaye]

Congrats! Well done!