[GAMBIT] how controll mesh quality

bob12 · October 14, 2009, 11:08

hi all
i have generate a mesh with cooper scheme, but the quality is not very good. after some trial i can do a mesh that don't have negative element and no equisize>0.97. the problem that the worst element is about 0.8.
what are the parameters that i must controll?

-mAx- · October 15, 2009, 02:33

Basically you need to control the equisize skew
Go and check the quality by clicking the icon at the bottom right.
Worst element with 0.8 is quite good.
I have no problem with mesh (unstrutured), which max equisize skew is 0.9

bob12 · October 15, 2009, 06:06

ok.
if i want to better mesh what can i do?
thank you for all max!

-mAx- · October 15, 2009, 06:44

try to understand why are the cells so skewed, and try to correct them with size function, etc...
But as I said 0.8 is good.

teguhtf · October 16, 2009, 14:48

Hi All!!!
Is there a reference to say that our meshing is good??

Can you tell me that reference??

Thanks
teguhtf

-mAx- · October 19, 2009, 01:51

check gambit help... but it s just theory.
Your self-experience will be helpfull..
From my side, I try to get mesh with max equisize skew about 0.9 (complex geometry with tetra-hexcore elements)

October 14, 2009, 11:08	how controll mesh quality	#1
bob12 Member Join Date: Oct 2009 Location: Italy Posts: 88 Rep Power: 16	hi all i have generate a mesh with cooper scheme, but the quality is not very good. after some trial i can do a mesh that don't have negative element and no equisize>0.97. the problem that the worst element is about 0.8. what are the parameters that i must controll?

October 15, 2009, 02:33		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	Basically you need to control the equisize skew Go and check the quality by clicking the icon at the bottom right. Worst element with 0.8 is quite good. I have no problem with mesh (unstrutured), which max equisize skew is 0.9 __________________ In memory of my friend Hervé: CFD engineer & freerider

October 15, 2009, 06:44		#4
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	try to understand why are the cells so skewed, and try to correct them with size function, etc... But as I said 0.8 is good. __________________ In memory of my friend Hervé: CFD engineer & freerider

October 16, 2009, 14:48	reference of meshing	#5
teguhtf Senior Member teguh hady Join Date: Aug 2009 Location: Saga, Japan Posts: 222 Rep Power: 17	Hi All!!! Is there a reference to say that our meshing is good?? Can you tell me that reference?? Thanks teguhtf

October 19, 2009, 01:51		#6
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	check gambit help... but it s just theory. Your self-experience will be helpfull.. From my side, I try to get mesh with max equisize skew about 0.9 (complex geometry with tetra-hexcore elements) __________________ In memory of my friend Hervé: CFD engineer & freerider

October 15, 2009, 06:06		#3
bob12 Member Join Date: Oct 2009 Location: Italy Posts: 88 Rep Power: 16	ok. if i want to better mesh what can i do? thank you for all max!

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