Issues with 3D Pipe Flow modeling Using Modulus

Physics Simulation Modulus Physics-ML Model Framework Technical Support (Modulus Only)
2

Hi,
I would suggest trying a few techniques to guide Modulus predict the flow behavior effectively:

  1. Use parabolic velocity constraint
  2. Add an integral plane and impose a mass flow constraint (reference).
  3. Start with the default lambda_weighting settings.
  4. Give modulus enough time to train [~100k iterations] and monitor the pressure drop and losses

I’m not an expert—these are based on my trial-and-error experiences.

Please check aneurysm example and this discussion post by @npstrike for more insight.

This is a simplest problem but sometimes very complicated to solve using Modulus-sym.

I hope this helps!

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