[poodle]

Hello everyone,

I am working on a turbomachinery case in ANSYS Fluent that also involves multiphase flow. However, I’ve run into a problem:

The moment I create a Turbo Mesh Interface (e.g., between rotating and stationary domain), the Multiphase Models option can no longer be selected.

Conversely, if I first enable Multiphase Flow, in my case the GENTOP model, then turbo interface can no longer be generated( the option becomes unselectable ).


So right now, I cannot have both multiphase + turbo interface active in the same simulation.

My questions:

1. Is this a known limitation in Fluent (i.e., multiphase and turbo interfaces are not supported together)?


2. If not, is there a specific setup step I’m missing that allows both to be used?



Any clarification would be greatly appreciated, since my simulation requires both turbo interface and multiphase modeling at the same time.

Thanks in advance!

[ABIRAMI]

its the limitation.

Multiphase models in Fluent are designed assuming a single computational mesh domain with shared phase interaction models.

Turbo Mesh Interfaces involve dynamic mesh motion, which Fluent’s multiphase solvers cannot handle in a coupled way.

[poodle]

Thank you for your reply, could you please let me know if this is mentioned anywhere in the FLUENT official documentation? Thanks!

Regards,
Faria Noor