[ANSYS Meshing] 2D "parallel" meshing

Kayser.Motorsport · June 15, 2016, 08:29

Hello,

I am working with ANSYS R14.5 and willing to perform a 2D dual element slot geometry optimisation for an airfoil. So in general that does not sound too complicated, but for some reason the time spending for meshing is ridicously long. So for instance 6,09e+5 nodes and 5,4429e+5 elements it takes like almost two hours or so. Don't you think this is unreasonable long?

My hardware details are:
- Dell Precision T7810XL
- Intel(R) Xeon(R) CPU E5-2640 v4 @2,4GHz
- RAM 8GB
- Windoes 7 Professional 64bit

I have already looked for parallel meshing, but the setting at the moment already says 0CPU - so that it automatically takes as many as accesible - and even when I increase the number manually, it always runs with only 1 CPU during meshing.

How can I decrease the meshing time in order to lower the mesh size for a more accurate result?

Interested in any thoughts you've got.

Cheers
Tim

diamondx · June 15, 2016, 09:18

ICEM CFD ? may be

Kayser.Motorsport · June 16, 2016, 09:02

well if possible, I'd rather like to stick to the "ansys mesher". I mean at least as long as there is any opportunity to reduce that time.

June 15, 2016, 08:29	2D "parallel" meshing	#1
Kayser.Motorsport New Member Tim Kayser Join Date: Mar 2016 Location: Germany Posts: 5 Rep Power: 10	Hello, I am working with ANSYS R14.5 and willing to perform a 2D dual element slot geometry optimisation for an airfoil. So in general that does not sound too complicated, but for some reason the time spending for meshing is ridicously long. So for instance 6,09e+5 nodes and 5,4429e+5 elements it takes like almost two hours or so. Don't you think this is unreasonable long? My hardware details are: - Dell Precision T7810XL - Intel(R) Xeon(R) CPU E5-2640 v4 @2,4GHz - RAM 8GB - Windoes 7 Professional 64bit I have already looked for parallel meshing, but the setting at the moment already says 0CPU - so that it automatically takes as many as accesible - and even when I increase the number manually, it always runs with only 1 CPU during meshing. How can I decrease the meshing time in order to lower the mesh size for a more accurate result? Interested in any thoughts you've got. Cheers Tim

June 15, 2016, 09:18		#2
diamondx Super Moderator Ghazlani M. Ali Join Date: May 2011 Location: Tokyo, Japan Posts: 1,385 Blog Entries: 23 Rep Power: 28	ICEM CFD ? may be __________________ Regards, New to ICEM CFD, try this document --> https://goo.gl/KAOIwm Ali

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June 16, 2016, 09:02		#3
Kayser.Motorsport New Member Tim Kayser Join Date: Mar 2016 Location: Germany Posts: 5 Rep Power: 10	well if possible, I'd rather like to stick to the "ansys mesher". I mean at least as long as there is any opportunity to reduce that time.