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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Problems with dynamic mesh settings while mesh motion › Reply To: Problems with dynamic mesh settings while mesh motion

April 4, 2024 at 12:18 pm
Federico
Ansys Employee

The cell height you specify is the ideal cell height for the adjacent cell layer. 

Fluent will collapse cells with height < 0.2*[ideal cell height], and split cells with height > 1.4*[ideal cell height]

0.2 and 0.4 are correspondingly the collapse and split factors by default. You can change these settings in the Layering settings.