We have an exciting announcement about badges coming in May 2025. Until then, we will temporarily stop issuing new badges for course completions and certifications. However, all completions will be recorded and fulfilled after May 2025.

Ansys Learning Forum Forums Discuss Simulation Fluids Specific heat UDF energy imbalance Reply To: Specific heat UDF energy imbalance

Anagh Dave
Subscriber

 

 

Hi , I think I have solved the mesh issue now . However ,I just had a question about running the mass fraction parameter.  So I executed the commands as specified in the document  and it runs perfectly if I have the fluent window open and just change the parameter value in the workbench. However , it fails to initialise while running in automation unsupervised. Right when it switches to the next design points and undergoes setup changes . I get the error in the solution monitor as ‘ unable to find rpvar’. I have been looking at some solutions however , I havent found one suitable.  To expand on this , the simulation will run once I initialise it and if I need to run it again , it fails with the same error .  All I have done is parameterise the mass fraction using rp var define command and use the lambda script procedure to assign the value . I have only followed the steps given here https://www.computationalfluiddynamics.com.au/how-can-i-drive-fluent-udf-parameters-directly-from-ansys-workbench/ 

 

Â