Contrib/Janaf

OpenFOAM uses the old janaf tables from which the temperature dependent values of Cp, H and S are valuated. Therfor the old janaf format uses 7 coefficients and 2 polynomals for a lower and a higher temperature range. The old janaf tables are valid for temperatures up to 6000 K.

Cp(T) = R( a[1] + a[2]T + a[3]T^2 + a[4]T^3 + a[5]T^4 )
H(T) = R( a[1]T + (a[2]T^2)/2 + (a[3]T^3)/3 + (a[4]T^4)/4 + (a[5]T^5)/5 + a[6] )
S(T) = R( a[1] lnT + a[2]T + (a[3]T^2)/2 + (a[4]T^3)/3 + (a[5]T^4)/4 + a[7] )

You can download an example for the old janaf table here:
ftp://ftp.technion.ac.il/pub/supported/aetdd/thermodynamics/THERM.DAT

The old janaf model is implemented in the application "dieselFoam" and can be tested in the test case "aachenBomb"
For some application this temperature range is not sufficient (e.g. plasma)