[GAMBIT] how to examine the mesh quality

rahulsharma · January 27, 2010, 06:05

hi this is rahul working on gambit and fluent and i would like to know about that what is the criteria for examine the mesh quality in gambit and what is the minimum mesh quality.
thank you in advance

-mAx- · January 28, 2010, 00:54

there is no rule, you can export a Mesh with high skewed elements, and run your job.
But with experience you will see, that convergence can ba affected by bad cells.
For me I would say
*skewness < 0.9 (for tetra)
*skewness < 0.8 (for hexa)

matthewsun · January 30, 2010, 02:38

once you\ve imported the *.msh to fluent,type in 'GRID quality' ,fluent will display the statistics of the your mesh.but sometimes you can get your ideal result with a relatively bad mesh quality!anyway a good mesh can help you save some time
matt

January 27, 2010, 06:05	how to examine the mesh quality	#1
rahulsharma New Member rahul Join Date: Oct 2009 Posts: 10 Rep Power: 16	hi this is rahul working on gambit and fluent and i would like to know about that what is the criteria for examine the mesh quality in gambit and what is the minimum mesh quality. thank you in advance

January 28, 2010, 00:54		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	there is no rule, you can export a Mesh with high skewed elements, and run your job. But with experience you will see, that convergence can ba affected by bad cells. For me I would say skewness < 0.9 (for tetra) skewness < 0.8 (for hexa) __________________ In memory of my friend Hervé: CFD engineer & freerider

January 30, 2010, 02:38	examining the mesh quality	#3
matthewsun New Member sunqiang Join Date: Nov 2009 Posts: 23 Rep Power: 16	once you\ve imported the *.msh to fluent,type in 'GRID quality' ,fluent will display the statistics of the your mesh.but sometimes you can get your ideal result with a relatively bad mesh quality!anyway a good mesh can help you save some time matt

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