Keyur Kanade
Ansys Employee

I assume you are doing fluids simulation. When you say triangle method I assume you are talking about tetrahedral mesh. 

Please check following videos

Ansys Meshing Sizing:

Ansys Meshing: Meshing Methods:

When you use growth rate of 1.1 then it increases cell count a lot. Please check if you can use 1.2. 

Please go through help manual for more details 



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