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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Divergence detected during single particle deposition analysis › Reply To: Divergence detected during single particle deposition analysis

April 11, 2024 at 1:32 am
Diego Fernando Garcia Gonzalez
Subscriber
Hey Rob!
 
I attach a new image with the node values off....
Before the calculation I always define options to the overset interface, for example the donor priority method to boundary distance based 
 
Also, I have tried different cell sizes between the background and the overset - ie 1:1, 1:2 and even 1:4 and I still have the problem. I've even tried dynamic meshes and the problem persists
 
Regarding, the displacamente of the block relative to the cell size. For this analysis I am assigning maximum time steps of 4e-4 s, if I consider that the expected terminal velocity of the ellipse is about 2 cm/s it would take 18 TS to overtake the receptor cell size (consider the receptor cell because it is smaller to the donor cells).