FLUENT variables for the use in UDF

sega · January 18, 2010, 06:24

Hello World.

I think prior to using the UDF correctly I have to know how the internal variables work in FLUENT.

Is there a manual on all these C_...- and other variables?
Like:

Code:

C_DPMS_YI(c,t,0) += mp_dot*dpm_relax;
C_DPMS_ENERGY(c,t) -= mp_dot*dpm_relax*
MATERIAL_PROP(sp,PROP_Cp)*(C_T(c,t)-298.15);
C_DPMS_ENERGY(c,t) -= mp_dot*dpm_relax*
MATERIAL_PROP(sp,PROP_latent_heat);

Where can I find informations about them?

Bernhard · January 18, 2010, 08:20

In your Fluent Documentation, you can go to the UDF Manual > Additional Macros for Writing UDFs > Data Acces Macros. This in 3.2 in my case, but it differs from version to version.

sega · January 19, 2010, 04:41

Thank you!
Thats exactly what I was searching for!

January 18, 2010, 06:24	FLUENT variables for the use in UDF	#1
sega Senior Member Sebastian Gatzka Join Date: Mar 2009 Location: Frankfurt, Germany Posts: 729 Rep Power: 20	Hello World. I think prior to using the UDF correctly I have to know how the internal variables work in FLUENT. Is there a manual on all these C_...- and other variables? Like: Code: C_DPMS_YI(c,t,0) += mp_dotdpm_relax; C_DPMS_ENERGY(c,t) -= mp_dotdpm_relax* MATERIAL_PROP(sp,PROP_Cp)(C_T(c,t)-298.15); C_DPMS_ENERGY(c,t) -= mp_dotdpm_relax* MATERIAL_PROP(sp,PROP_latent_heat); Where can I find informations about them? __________________ Schrödingers wife: "What did you do to the cat? It's half dead!"

January 19, 2010, 04:41		#3
sega Senior Member Sebastian Gatzka Join Date: Mar 2009 Location: Frankfurt, Germany Posts: 729 Rep Power: 20	Thank you! Thats exactly what I was searching for! __________________ Schrödingers wife: "What did you do to the cat? It's half dead!"

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January 18, 2010, 08:20		#2
Bernhard Senior Member Bernhard Join Date: Sep 2009 Location: Delft Posts: 790 Rep Power: 22	In your Fluent Documentation, you can go to the UDF Manual > Additional Macros for Writing UDFs > Data Acces Macros. This in 3.2 in my case, but it differs from version to version.