July 17, 2023 at 5:25 pm
Federico
Ansys Employee

Hello Mark, 

this error may or may not be related to the UDF. To be sure, have you tried running your setup without the inclusion of the UDF?

If you have, please ensure that you have correctly compiled and loaded the UDF into your case 5.2. Compiling a UDF Using the GUI (ansys.com).

Here's a list of compatible compilers for Fluent 2.2. Compiler Requirements for Windows Systems (ansys.com). Alternatively, you may also use Fluent's built-in compiler.

Â