Step 4: UDF

1.   Compile the user-defined function, conduct.c, that will be used to define the thermal conductivity for the gas and solid phase.

Define $\rightarrow$ User-Defined $\rightarrow$ Functions $\rightarrow$ Compiled...

(a)   Click the Add... button below the Source Files option to open the Select File dialog box.

  

i.   Select the file conduct.c and click OK in the Select File dialog box.

(b)   Click Build.

   ANSYS FLUENT will create a libudf folder and compile the UDF. Also, a Warning dialog box will open asking you to make sure that UDF source file and case/data files are in the same folder.

(c)   Click OK to close the Warning dialog box.

(d)   Click Load to load the UDF.

Extra:   If you decide to read in the case file that is provided for this tutorial on the User Services Center, you will need to compile the UDF associated with this tutorial in your working folder. This is necessary because ANSYS FLUENT will expect to find the correct UDF libraries in your working folder when reading the case file.