show bad cells of dual mesh

tb_cfd · May 15, 2013, 03:13

After improving the min angle of a structured mesh in icem i started a simulation. Then i checked the converted mesh quality and determined a min angle which is much worse than in the icem mesh.
Is it possible to see, were the bad cells in the converted mesh are, so that i can improve it?

Thanks for your help

ghorrocks · May 15, 2013, 03:18

Yes. In CFD-Post load your def (or cfx or whatever) file. Go to the "Calculators" tab, select Mesh Calculator. Under function select the type of mesh metric you want - in your case Min Face Angle makes sense. Then go back to the outline tab and you now have a variable called Min Face Angle which can be displayed like any other variable. You can do an isosurface to locate the really bad region. Note the new mesh metric variables will be under the puzzlingly titled "..." button.

May 15, 2013, 03:13	show bad cells of dual mesh	#1
tb_cfd New Member tb_cfd Join Date: May 2013 Posts: 8 Rep Power: 12	After improving the min angle of a structured mesh in icem i started a simulation. Then i checked the converted mesh quality and determined a min angle which is much worse than in the icem mesh. Is it possible to see, were the bad cells in the converted mesh are, so that i can improve it? Thanks for your help

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
snappyHexMesh in parallel - FOAM Fatal IO Error	mturcios777	OpenFOAM Running, Solving & CFD	4	August 10, 2012 19:18
[snappyHexMesh] non-smooth mesh	Svensson	OpenFOAM Meshing & Mesh Conversion	11	January 18, 2012 09:13
fluent add additional zones for the mesh file	SSL	FLUENT	2	January 26, 2008 11:55
physical boundary error!!	kris	Siemens	2	August 3, 2005 00:32
How to control Minximum mesh space?	hung	FLUENT	7	April 18, 2005 09:38

May 15, 2013, 03:18		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Yes. In CFD-Post load your def (or cfx or whatever) file. Go to the "Calculators" tab, select Mesh Calculator. Under function select the type of mesh metric you want - in your case Min Face Angle makes sense. Then go back to the outline tab and you now have a variable called Min Face Angle which can be displayed like any other variable. You can do an isosurface to locate the really bad region. Note the new mesh metric variables will be under the puzzlingly titled "..." button.