[GAMBIT] 3D hollow cone spray meshing problem

adsl17754 · April 11, 2012, 01:42

Hi everyone,

I met a problem when I tried to make a 3D hollow cone spray mesh in Gambit. I meshed the top face first(shown below), and tried to use cooper to generate volume mesh, then the error "Assertion failed in FullMinMeshTool.cc, line 749: geom_children.size()==mp->..."(shown below) appeared, I tried many times but the error still exists... Hoping to get your suggestion, many thanks~
2012-04-10_HollowCone_5_1.png 2012-04-10_HollowCone_4_1.jpg 2012-04-10_HollowCone_4_2.png
2012-04-10_1.jpg

vinayender · April 11, 2012, 01:58

Hi

just to see there is no problem with your geometry or procedure,

try first meshing with a coarse gird and see...

look mesh is too fine at the corner

adsl17754 · April 11, 2012, 02:18

Thanks vinayender. Try a coarse grid at first is a good suggestion, I will try it later. I am interested in how to generate volume mesh with such fine grids at the corner, because I need fine grids to insure accuracy. Many Thanks~

adsl17754 · April 13, 2012, 23:56

I found something wrong with the geometry of that face. I can now mesh the volume~

April 11, 2012, 01:42	3D hollow cone spray meshing problem	#1
adsl17754 New Member Zh Join Date: Mar 2012 Posts: 17 Rep Power: 14	Hi everyone, I met a problem when I tried to make a 3D hollow cone spray mesh in Gambit. I meshed the top face first(shown below), and tried to use cooper to generate volume mesh, then the error "Assertion failed in FullMinMeshTool.cc, line 749: geom_children.size()==mp->..."(shown below) appeared, I tried many times but the error still exists... Hoping to get your suggestion, many thanks~ 2012-04-10_HollowCone_5_1.png 2012-04-10_HollowCone_4_1.jpg 2012-04-10_HollowCone_4_2.png 2012-04-10_1.jpg

April 11, 2012, 01:58		#2
vinayender New Member Vinayender Join Date: Jul 2009 Location: India Posts: 24 Rep Power: 17	Hi just to see there is no problem with your geometry or procedure, try first meshing with a coarse gird and see... look mesh is too fine at the corner __________________ Thanks , Vinayender

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April 11, 2012, 02:18		#3
adsl17754 New Member Zh Join Date: Mar 2012 Posts: 17 Rep Power: 14	Thanks vinayender. Try a coarse grid at first is a good suggestion, I will try it later. I am interested in how to generate volume mesh with such fine grids at the corner, because I need fine grids to insure accuracy. Many Thanks~

April 13, 2012, 23:56		#4
adsl17754 New Member Zh Join Date: Mar 2012 Posts: 17 Rep Power: 14	I found something wrong with the geometry of that face. I can now mesh the volume~