CFD Online Discussion Forums

CFD Online Discussion Forums (
-   OpenFOAM Running, Solving & CFD (
-   -   fireFoam combustion properties (

tobyB August 30, 2013 05:21

fireFoam combustion properties

Could anyone help me find out where combustion properties are located in fireFoam? I am using oppositeburningpanels and can see that C3H8 has been used, and I do not seem to be able to find how they calculate or specify the heat released by combustion.
I also found a properties section for C3H8 in doxygen, it specifies rho, cp, and other things but not heat released.


tobyB September 3, 2013 04:46

Cp combustion seems to be specified with cp polynomial coefficients in thermo.compressiblegas, then using enthalpy of different products before and after the reaction to get heat released.

Ok, so I have now found that varliable dQ specifies the heat released (in J), however I need to try and sum this value over each cell in the volume to get the total heat release rate.
Does anyone know how to do this in paraview? I have tried integrate variables, but that seems to only give me values for a single cell.
Exporting the grid to excel and summing all dQ values works, but it is quite a slow process.



All times are GMT -4. The time now is 02:05.