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 › Fluent solution slowing down : 2-way FSI › Reply To: Fluent solution slowing down : 2-way FSI

October 27, 2024 at 2:12 pm
sampathsrikanth1999
Subscriber

Hi Rahul. I ran the case using 15 cores just as you said but I am still facing the same problem. The mesh update is so slow. 

"COUPLING STEP = 111      COUPLING ITERATION = 1". It gets stuck at this place. Its been 30 minutes(still counting). I also tried running a coarser mesh (140k cell in 2 cores). It also encountered the same problem. With time it got slower (it took 5 hrs to calculate 10 coupling steps (step size 1ms)). In the coarser mesh, I also encountered a issue that fluent is not converging. The fluent solution going well till now but now continuity is oscillating around 5e-3 (target 1e-4). 

Â