postProcess calculate Tdeg
 

Hi, Im trying to calculate the temperature in Celsius by using the postProcess utility. In previous version (OF22x) it was straight forward with the foamCalc utility to simply subtract 273 K from T to get Tdeg. I have tried different combinations with the postProcess utility e.g.


I get this error message:



--> FOAM FATAL IO ERROR:
wrong token type - expected word, found on line 4 the doubleScalar 273.15

file: /usrfem/femsys_local/OpenFOAM/OpenFOAM-6/etc/caseDicts/postProcessing/fields/subtract.fields at line 4.

From function Foam::Istream& Foam::operator>>(Foam::Istream&, Foam::word&)
in file primitives/strings/word/wordIO.C at line 74.



Does anyone know how to simply subtract a value from a field via the postProcess utility?
Additional info, I’m using OF6 in a multiregion case.

Hi,

I guess it would be fastest to make a field Tref with internalField and all boundaries at uniform 273.15 and than run as

Regards,
Tom

Thanks Tom, it works perfect!