Thank you for reaching out to us and your patience is well appreciated.
Please go through the following observations / comments on your post:
- Did you change the convergence criterion from the default one? If so, please check with default convergence values and also share the screenshot for your model convergence.
- Validate your simulation setup for the correctness?
- Please go through examples and getting started guides on Q3D if you are a beginner.
Kindly share screenshots of the analysis setups to help us serve you better.