[GAMBIT] Problem with meshing a volume

ASTRA095 · May 6, 2016, 06:46

Help me, please.
I created geometry (furnace atomic absorption analysis) in Gambit.
I started to make the grid and the error occurred: "ERROR: TG mesh domain failed with error code1
ERROR: Tetrahedral meshing has failed for volume.
This usually caused by problems in the face meshes.
check the skewness of your face meshes and make sure the
face mesh sizes are not too large in areas of small gaps."
I created a new geometry, but the error remained.
I created the face of the grid, but the construction of the volume error.
I am newbie. Please, what is my fault?
Thank you.

-mAx- · May 9, 2016, 01:33

you are trying to mesh a volume on the fly, but you have small entities in your geometry.
If you don't set any size function or whatever, Gambit will try to mesh the volume with the parameters you gave (and will fail because of small feature).
Check in your geometry where are small features, and use size functions

ASTRA095 · May 9, 2016, 13:54

I ask for each face mesh. And then the total volume. There is also a negative volume of error. How to use the size functions?

-mAx- · May 10, 2016, 01:29

https://www.sharcnet.ca/Software/Gam...ommands_create

ASTRA095 · May 11, 2016, 14:50

Thank you. Happened. I found a very small volume. I made a simple volume and the mtsh was created.

May 6, 2016, 06:46	Problem with meshing a volume	#1
ASTRA095 New Member Анита Join Date: May 2016 Posts: 3 Rep Power: 9	Help me, please. I created geometry (furnace atomic absorption analysis) in Gambit. I started to make the grid and the error occurred: "ERROR: TG mesh domain failed with error code1 ERROR: Tetrahedral meshing has failed for volume. This usually caused by problems in the face meshes. check the skewness of your face meshes and make sure the face mesh sizes are not too large in areas of small gaps." I created a new geometry, but the error remained. I created the face of the grid, but the construction of the volume error. I am newbie. Please, what is my fault? Thank you. Last edited by ASTRA095; May 6, 2016 at 12:26.

May 9, 2016, 01:33		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	you are trying to mesh a volume on the fly, but you have small entities in your geometry. If you don't set any size function or whatever, Gambit will try to mesh the volume with the parameters you gave (and will fail because of small feature). Check in your geometry where are small features, and use size functions ASTRA095 likes this. __________________ In memory of my friend Hervé: CFD engineer & freerider

May 10, 2016, 01:29		#4
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	https://www.sharcnet.ca/Software/Gam...ommands_create ASTRA095 likes this. __________________ In memory of my friend Hervé: CFD engineer & freerider

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May 9, 2016, 13:54		#3
ASTRA095 New Member Анита Join Date: May 2016 Posts: 3 Rep Power: 9	I ask for each face mesh. And then the total volume. There is also a negative volume of error. How to use the size functions?

May 11, 2016, 14:50		#5
ASTRA095 New Member Анита Join Date: May 2016 Posts: 3 Rep Power: 9	Thank you. Happened. I found a very small volume. I made a simple volume and the mtsh was created.