Density Calculation
 

Hey there,
i try to create a new (my first) solver based on icoFoam. The problem i'm solving is incompressible but with the density as a function of temperature.
On my search for some precompiled libraries i found the basicRhoThermo.
It's for density based thermodynamical properties. But i can't make out how the density is calculatet. so can anyone give me some explanation on this?

thanks