Look for mass fraction
 

Hi,

In OpenFOAM, it is shown
"00056 inline Foam::volScalarField& Foam::basicMultiComponentMixture::Y
00057 (
00058 const word& specieName
00059 )
00060 {
00061 return Y_[species_[specieName]];
00062 }"
to look for the specie of interest.

I am wondering what the meaning of "const word& specieName" is?
In terms of CO2, how to express it? Y[CO2]?
Thanks.

Look at the Yeqn at doxygen.
Might give you some ideas