Rob
Ansys Employee
Reading/compiling the code just makes it available to the solver. You then need to attach the code in the right place, and that depends on the macros used and it's purpose. nA zero result could mean an error in the code or that Fluent doesn't know anything about it if it's not been hooked up correctly. If you look in the documentation for the main macro it'll say where it's attached in most cases. n