[rocco_Tororolo]

Hi
I have reacently approched reactingFoam to symulate an simplified hybrid rocket engine with a one step combustion of ethylene whit pure oxigen.The approach I am adopting is to modify an existing reactinFoam tutorial (SandiaD_LTS) and i managed to create an axisymmetric mesh, set the proper boundary conditions and run a simulation but obviusly since i didn't modify the costants/reaction file the C2H4 + 3O2 = 2CO2 + 2H2O reaction dosen't occur.
the problems i am facing are :
-if in combustion properties i change the combustionModel to InfinetlyFastchemestry, i recive an error that says " missing entry semiImplicit"
-If i brutally add the C2H4 + 3O2 = 2CO2 + 2H2O reaction in the raction file i recive an error that ays "02 species missing from tables"
-if i replace all the reactions whith just te ethylene combustion the symulation crashes at the first iteraction

I know is a lot of stuff and fairly complex but any kind of help is appricieted even a small one. Also some sources or texts to look into would be fantastic