Learning Forum

[mamadreza9561]

Hi

I am trying to use Fluent-style expressions in Polydata by activating Pmat option. I have tried saving files as name.exp and using them for viscosity definitions, but the solver asks for a tag. No matter what I do, I still get an error saying the tag was not found.I have reviewed all available tutorials, but none provide a clear step-by-step process for this. Could you please provide detailed guidance on fluend expression writing and running in polydata at polyflow?

• Where should the expression file be saved?
• How should it be referenced in the simulation?
• What exactly is meant by the term “tag”?
  
  
• is there any basic example?

many thanks