[LiGi]

Hello together,
does anyone have the SanDiego mechanism in OpenFOAM format?
When I try to convert the data via chemkinToFoam I get the error



--> FOAM FATAL ERROR:
while reading thermodynamic data specie formula on line 2
expected <word><label><word><label><word><label><word><labe l> (4(2A1,I3)) but found '"0"0.000'

Changing THERMO to THERMO ALL did not help either.


Many greetings

[dlahaye]

How exactly do you run chemkinToFoam?

Do you manage to convert other mechanisms ok?

[LiGi]

Originally Posted by dlahaye

How exactly do you run chemkinToFoam?

Do you manage to convert other mechanisms ok?

chemkinToFoam SanDiegoMech SanDiegoThermo TransportProperties SanDiegoMechOF SanDiegoThermOF


SanDiegoMechOF and SanDiegoThermOF are the output files.
Yes, for example GriMech3 and DRM19.

[dlahaye]

Thank you for your further elaboration.

I see that https://web.eng.ucsd.edu/mae/groups/...mechanism.html provides thermo and transport data as well. I can imagine that the chemistry file requires its thermo and transport data to be converted.

Alternatively, the same page provides as sequence of chemkin files of older date. Possibly you can try those.

[LiGi]

Originally Posted by dlahaye

Thank you for your further elaboration.

I see that https://web.eng.ucsd.edu/mae/groups/...mechanism.html provides thermo and transport data as well. I can imagine that the chemistry file requires its thermo and transport data to be converted.

Alternatively, the same page provides as sequence of chemkin files of older date. Possibly you can try those.

I have tested exactly these mechanisms, new and old.

Always the error described above .

[dlahaye]

I see.

What in case that you replace the first line of thermo.dat the line
"THERMO"
by
"THERMO ALL" as in e.g. https://github.com/OpenFOAM/OpenFOAM...n/thermo30.dat

[LiGi]

Originally Posted by dlahaye

I see.

What in case that you replace the first line of thermo.dat the line
"THERMO"
by
"THERMO ALL" as in e.g. https://github.com/OpenFOAM/OpenFOAM...n/thermo30.dat

I have tried that too, without success.
However, if I copy the SanDiego Thermo file to the end of the Thermo file from GriMech3, the conversion works. However, I do not know if it is possible to do it this way.

[dlahaye]

Congrats for the progress that you are making!

I imagine that at this point it is a matter of understanding the format of the thermo-file, i.e., understanding what is really in the file.

Does the union of both files contain more species that the two files individually? Is a single file insufficient to cover the complete temperate range?

[adhiraj]

From my experience OpenFOAM is very strict about the proper format of the thermo files.

Take a look here for a solution for some common problems with reading them in OpenFOAM:

chemkinToFoam parsing issues? (v19)