[craven.brent]

Hi All,

I am trying to implement a custom/modified PhaseChangeModel for Reacting parcels/clouds in OpenFOAM. Essentially, I want to customize the LiquidEvaporation submodel. But, I am having problems creating a cloned version of LiquidEvaporation and getting it compiled and running.

Here is what I have done (following https://www.cfd-online.com/Forums/openfoam-programming-development/131448-sprayfoam-water-spraying-into-steam-air-environment.html#post480698):

1. Copied $FOAM_SRC/lagrangian/intermediate/submodels/Reacting/PhaseChangeModel/LiquidEvaporation and renamed to NonIdealLiquidEvaporation
2. Create a makeCustomReactingParcelPhaseChangeModels.C file with the following:

   #include "basicReactingCloud.H"
   #include "NonIdealLiquidEvaporation.H"
   
   namespace Foam
   {
       makePhaseChangeModelType(NonIdealLiquidEvaporation, basicReactingCloud);
   }

3. Create corresponding Make directory and files
4. Compile
5. Run with test case with the following in system/controlDict:

   libs ("libCustomReactingParcelPhaseChangeModels.so");

Here is my code with a corresponding test case: https://drive.google.com/open?id=1fBjiv2qaOlYPWu_Jhu9n8KLJgFeGoeqk


The custom model/code compiles with no issues. However, when I try using it in the test case I get:

--> FOAM FATAL ERROR: 
Unknown phaseChangeModel type nonIdealLiquidEvaporation

Valid phaseChangeModel types :

3
(
liquidEvaporation
liquidEvaporationBoil
none
 )

So, for some reason the new phase change model is not added to the run time selection for phaseChangeModel. The makePhaseChangeModelType macro in $FOAM_SRC/lagrangian/intermediate/submodels/Reacting/PhaseChangeModel/PhaseChangeModel/PhaseChangeModel.H seems like it should add the new model to the list of available options.


Has anyone had this issue? Or, has anyone successfully created a custom Lagrangian phase change model?


Note that I have also tried copying the entire $FOAM_SRC/lagrangian/intermediate library, adding my custom phase change model, and recompiling (as recommended in section 1.4 here: http://www.tfd.chalmers.se/~hani/kur...man-Arshad.pdf) with no success.


Thanks for your thoughts.

Brent

[zhangyan]

Hi
If you are using OF-6, then you should remove the "namespace Foam" in the makeCustomReactingParcelPhaseChangeModels.C file.

[craven.brent]

Hi Yan,


Thanks for the advice. I have tried this in both OpenFOAM-v1806 and OpenFOAM-v1812 with the same result:

Unknown phaseChangeModel type nonIdealLiquidEvaporation

Is the Lagrangian library in OpenFOAM version 6 (now 7) significantly different?


If so, it might be worth a shot.


Thanks,
Brent

[jairoandres]

Hi, did you finally solve it?

Originally Posted by craven.brent

Hi Yan,


Thanks for the advice. I have tried this in both OpenFOAM-v1806 and OpenFOAM-v1812 with the same result:

Unknown phaseChangeModel type nonIdealLiquidEvaporation

Is the Lagrangian library in OpenFOAM version 6 (now 7) significantly different?


If so, it might be worth a shot.


Thanks,
Brent

[jairoandres]

In my case, following the Chalmers guide did not work well ( http://www.tfd.chalmers.se/~hani/kur...man-Arshad.pdf)).

What I had to do to compile a test phase change model was the following: (OpenFOAM 2012).

1. Local compilation (Chalmers) did not work in any case.
2. Therefore I used the Chalmers procedure but in the root ($FOAM_SRC/lagrangian/intermediate/, etc).
3. Naturally, the intermediate/Make file is not modified in the root (LIB = $(FOAM_USER_LIBBIN)/libmylagrangianIntermediate is not included) as the compilation is not local.
4. If compiled from lagrangian/intermediate/ -->sudo bash --> wclean --> wmake libso, the compilation is successful but still the phase change model is not available in the list.
5. Compilation was successful and phase change model is available if compiled from $FOAM_SRC/lagrangian (--> sudo bash --> wclean --> ./Allwmake).

Please let me know if anybody can perform the local compilation in recent versions of OpenFOAM.

Best regards,

Jairo.