# [GAMBIT] Problem with mesh in Gambit

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February 26, 2010, 05:16
Problem with mesh in Gambit
#1
New Member

Giuseppe Merlini
Join Date: Feb 2010
Posts: 6
Rep Power: 8
Hi guy. I'm italian and For first i'm sorry for my english; i'm writing because i have a serious problem with gambit. in the picture that i enclose, there is a cylinder. I have mesh the surface 30, 31, 32 with elements: quad, type: map! when I mesh the volume, I select elements: HEX/WEDGE e type: cooper; for sources of cooper, i select surface: 30, 31, 32, but this is the result: ERROR: volume volume.11 cannot be meshed with only one connected set of source face. please help me. are the problem in the element that i indicated in the picture? is the geometry wrong? thank you very much for alla answer
Attached Images
 cylinder.jpg (93.9 KB, 65 views)

 March 1, 2010, 01:51 #2 Super Moderator     Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,160 Rep Power: 32 select faces 30 and 32 as source. I assume your volume.11 is a cylinder __________________ In memory of my friend Hervé: CFD engineer & freerider

 March 2, 2010, 07:18 problem 2 #3 New Member   Giuseppe Merlini Join Date: Feb 2010 Posts: 6 Rep Power: 8 thank you very much mAx for your reply. Now i have another question! There is a comand for refresh drawing, because when the dimensions are very small, the circle for example became hexagon! thank you for your reply.

 March 2, 2010, 07:42 #4 Super Moderator     Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,160 Rep Power: 32 if the circle is hexagonal it is due to the number of nodes on your circle. I assume you only have 6 nodes. And 6 edges describing an circle is an hexagon __________________ In memory of my friend Hervé: CFD engineer & freerider

 March 2, 2010, 10:04 #5 New Member   Giuseppe Merlini Join Date: Feb 2010 Posts: 6 Rep Power: 8 In the geometry mAx, no in the mesh

March 2, 2010, 14:12
#6
Super Moderator

Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,160
Rep Power: 32
Quote:
 Originally Posted by giuseppemerlini In the geometry mAx, no in the mesh
post a picture
__________________
In memory of my friend Hervé: CFD engineer & freerider

 March 3, 2010, 04:38 refresh drawing #7 New Member   Giuseppe Merlini Join Date: Feb 2010 Posts: 6 Rep Power: 8 in this picture, you can see that the 4 circles intersect each other! this because the distance are very small: order of micron! if you could do a refresh, i can mesh the surface because in this moment this is impossible.

March 3, 2010, 04:41
#8
New Member

Giuseppe Merlini
Join Date: Feb 2010
Posts: 6
Rep Power: 8
the picture!
Attached Images
 Immagine.JPG (28.9 KB, 21 views)

 March 3, 2010, 06:02 #9 Super Moderator     Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,160 Rep Power: 32 I assume it is just a representation issue. And you don't have meshing problems? __________________ In memory of my friend Hervé: CFD engineer & freerider

 March 3, 2010, 06:13 #10 New Member   Giuseppe Merlini Join Date: Feb 2010 Posts: 6 Rep Power: 8 yes, we have problem when we mesh surfaces,

 March 3, 2010, 08:01 #11 Super Moderator     Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,160 Rep Power: 32 upload your dbs file on a share server, I will take a look at it tomorrow __________________ In memory of my friend Hervé: CFD engineer & freerider

 November 7, 2014, 15:40 Cooper meshing face selection problem #12 New Member   Join Date: May 2014 Posts: 1 Rep Power: 0 Please I have a similar problem like the Main question, I have a cylinder volume and I like to use the HEX cooper technique to mesh the volume, noting that at the surface I split the surface the top and bottom using different shapes to control the mesh generated more and I split the side surface of the volume for the same reason of controlling the structure. the cylinder is upright as in the attached picture. Cylinder.JPG thanks in advance for your help.

 November 10, 2014, 02:04 #13 Super Moderator     Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,160 Rep Power: 32 Are shapes at top and bottom similar? __________________ In memory of my friend Hervé: CFD engineer & freerider

 Tags geometry, problem

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