Access to molecular weights and enthalpies in UDF

February 20, 2007, 09:44

Hi,

For a UDF I am writing I need access to species molecular weights and enthalpies of formation.

Is this possible from within a DEFINE_EXECUTE_AT_END or DEFINE_SOURCE macro?

What is the syntax?

From looking at the header files and other macros I see there is a call 'mw[]' and 'hi[]'. Would these give me the molecular weight and enthalpy for species i in the same way that C_YI[] does for mass fraction?

Thanks,

Tristan

abhishekss123 · September 1, 2011, 04:45

Hi,
I am facing the same difficulty.
Did anyone find out how to access the specific enthalpy of a specie from UDF?
hi[] does not help.

Regards,
Abhishek

February 20, 2007, 09:44	Access to molecular weights and enthalpies in UDF	#1
tristan Guest Posts: n/a	Hi, For a UDF I am writing I need access to species molecular weights and enthalpies of formation. Is this possible from within a DEFINE_EXECUTE_AT_END or DEFINE_SOURCE macro? What is the syntax? From looking at the header files and other macros I see there is a call 'mw[]' and 'hi[]'. Would these give me the molecular weight and enthalpy for species i in the same way that C_YI[] does for mass fraction? Thanks, Tristan

September 1, 2011, 04:45		#2
abhishekss123 New Member Abhishek Join Date: Sep 2010 Posts: 3 Rep Power: 15	Hi, I am facing the same difficulty. Did anyone find out how to access the specific enthalpy of a specie from UDF? hi[] does not help. Regards, Abhishek