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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Fluent model not completing first iteration? › Reply To: Fluent model not completing first iteration?

April 17, 2024 at 1:30 pm
Gregory Harrington
Subscriber

Hi Rob, Thanks for the quick response, I checked the other settings and it turns out the newer model was defaulted to coupled solver and the previous model that ran fine was set to SIMPLE. I am now running the newer model that has 29M cells and it is running fine but it us using ~120 GB of RAM. That means even with a pressure based SIMPLE solver with polyhedra cells it's using 4GB/1M cells which seems like a lot.

I thought the recent Fluent versions only use 1-2 GB/1M cells. Do you think it's any issue with my hardware or the fluent parallel settings?