[saeed.sedigh]

Hi all
I am looking to define the constant thermal conductivity for different temperature.

I wrote as below in Microsowft Visual Studio, it got 12 errors:
#include _FLUENT_UDF_H
DEFINE_PROPERTY(user_k, cell, thread)
{
real user_k;
temp = C_T(cell, thread);
if (temp > 316.)
user_k = 0.148;
if (temp < 315. )
user_k = 0.15;
else
user_k = 1.5;
return user_k;
}
Is there anyone could help me?
Thanks

[upeksa]

Your first line of code should be :

#include "udf.h"

If you don't include this header, your code will not understand the meaning of a cell, a thread and so on.

Delete this line:

#include _FLUENT_UDF_H

[macfly]

change:
temp = C_T(cell, thread);

for:
real temp = C_T(cell, thread);