[anfho]

Hi All,
I am trying to substitute the density calcultaion that OpenFoam uses in fireFoam with my own density calculation model.

Since I am a newbie in OF and a newbie in C++ also, I haven't completely understood, how the functionalities and the dependencies are in OF-fireFoam. . For example, I am even confused what

rho = thermo.rho()

exactly means, what exactly happens there and where the thermo class is located at...

So my questions are:
(1) can the density calculation be easily swaped with a different model?
(2) where is the thermo class located?
(3) does anyone know how the density update works in OF? Is it based on the recursive beta PDF integration and where are the actual calculations happening?

Any help is greatly appreciated,
Andreas