[ANSYS Meshing] Give me some simple formula for to calculate min & max size values using scaling

pandu · June 2, 2011, 09:24

sir ,
i am using ANSYS 12
i have a problam in meshing
i am using patch independent tetra mesh.
sir i want some simple formula or procedure for calculate
1.min size
2.max size

using data like geometry size ( X, Y, Z direction length).

Max Efficiency · June 6, 2011, 04:27

Min Size = minimum gap size / 5...10

Max Size = maximum gap size / 10

With that values you have at least 5 to 10 elements in your smallest gap and at least 10 elements in the largest gap. Take this as an first assamption and find values that are reasonable for your project.

PSYMN · June 6, 2011, 12:35

I agree with Max E.'s suggestion as a good way to start.

However, it is very model and situation dependent (no one size fits all). Also, you could have a global min size and a smaller local min size...

You will probably need to come up with your own rule-of-thumb based on your own specific needs.

June 2, 2011, 09:24	Give me some simple formula for to calculate min & max size values using scaling	#1
pandu New Member D.Pandarinath Join Date: May 2011 Posts: 2 Rep Power: 0	sir , i am using ANSYS 12 i have a problam in meshing i am using patch independent tetra mesh. sir i want some simple formula or procedure for calculate 1.min size 2.max size using data like geometry size ( X, Y, Z direction length).

June 6, 2011, 12:35		#3
PSYMN Senior Member Simon Pereira Join Date: Mar 2009 Location: Ann Arbor, MI Posts: 2,663 Blog Entries: 1 Rep Power: 47	I agree with Max E.'s suggestion as a good way to start. However, it is very model and situation dependent (no one size fits all). Also, you could have a global min size and a smaller local min size... You will probably need to come up with your own rule-of-thumb based on your own specific needs. __________________ ----------------------------------------- Please help guide development at ANSYS by filling in these surveys Public ANSYS ICEM CFD Users Survey This second one is more general (Gambit, TGrid and ANSYS Meshing users welcome)... CFD Online Users Survey

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June 6, 2011, 04:27		#2
Max Efficiency New Member Join Date: May 2010 Posts: 24 Rep Power: 16	Min Size = minimum gap size / 5...10 Max Size = maximum gap size / 10 With that values you have at least 5 to 10 elements in your smallest gap and at least 10 elements in the largest gap. Take this as an first assamption and find values that are reasonable for your project.