[ingabobjoe]

Hi,
I'm conducting a transient heat transfer simulation, with a DEFINE_GRID_MOTION UDF controlling dynamic mesh motion. I've conducted this simulation a number of times without issue, but recently it started hanging 63% of the way through and not finishing. When it hangs, the console displays the following text:

Flow time = 54540s, time step = 909
531 more time steps

Updating solution at time level N...
 done.

Updating mesh at time level N... 
>> Dividing domain into 1 partition using Metis.
   Time = 0 seconds.
   Done.

>> 1 Stored Partitions:
   ----------------------------------------------------------------------
   Collective Partition Statistics:        Minimum   Maximum   Total     
   ----------------------------------------------------------------------
   Cell count                              6506      6506      6506      
   Mean cell count deviation               0.0%      0.0%      
   Partition boundary cell count           0         0         0         
   Partition boundary cell count ratio     0.0%      0.0%      0.0%      

   Face count                              9932      9932      9932      
   Mean face count deviation               0.0%      0.0%      
   Partition boundary face count           0         0         0         
   Partition boundary face count ratio     0.0%      0.0%      0.0%      

   Fluid cells                             6402      6402      6402      
   Mean fluid cell deviation               0.0%      0.0%      

   Solid cells                             104       104       104       
   Mean solid cell deviation               0.0%      0.0%      

   Partition neighbor count                0         0         
   ----------------------------------------------------------------------
   Partition Method                        Metis                                
   Stored Partition Count                  1                                    
Done.
..
   Done.

I'm trying to solve this pretty urgently for an assignment, so would anyone have an idea why this would be happening all of a sudden? The strange thing is I have even gone back and attempted to re-run the simulation with my old settings, but am still running into the same issue, making me think the source might be something outside Fluent. Any ideas?

Thanks!