[wtjhaha]

Hi everyone,
Recently I use the solver reactingParcelFoam, and there are some problems when using it, so I am coming for help.
1.There are files named reactingCloudPositon and reactingCloudProperties, what are these files' usage and how can I rewrite it?
2.In flies like thermoPhysicalProperties, there are always many coeffs, like rho, Cp, mu, and kappa, what are the numbers after them stand for ?
for example ,

H2O
{
    specie
    {
        nMoles          1;
        molWeight       18.0153;
    }
    equationOfState
    {
        rhoCoeffs<8>   ( 2.5039 -0.010587 2.0643e-05 -1.8761e-08 6.4237e-12 0 0 0 );
    }
    thermodynamics
    {
        Hf              -13423000;
        Sf              10482;
        CpCoeffs<8>    ( 1563.1 1.604 -0.0029334 3.2168e-06 -1.1571e-09 0 0 0 );
    }
    transport
    {
        muCoeffs<8>    ( 1.5068e-06 6.1598e-08 -1.8188e-11 0 0 0 0 0 );
        kappaCoeffs<8> ( 0.0037972 0.00015336 -1.1859e-08 0 0 0 0 0 );
    }
}

what are these figures stand for?
Really need your help!
Thanks !