# [ICEM] 2D to 3D block by rotation

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 July 7, 2012, 13:17 #21 Member   Khayyamian Join Date: Dec 2010 Posts: 46 Rep Power: 15 Thanks; so you mean the main remedy in such situation is to ply with vertices and edges regaridng to each other?

 July 7, 2012, 13:20 #22 Super Moderator   Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54 Aligning vertices and edges is the key to good blocking, besides the good blocking topology. But I found some new problems, which are related to how we apply the o-grid. I guess I should apply O-grid for boundary layer mesh first and then the o-grid for the pipe(both inner and outer).

 July 7, 2012, 13:26 #23 Member   Khayyamian Join Date: Dec 2010 Posts: 46 Rep Power: 15 I myself use block Extrusion for inlet pipe!

 July 7, 2012, 13:27 #24 Super Moderator   Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54 me too. After that I applied the O-grid around the pipe inside the main domain and then inner o-grid for the pipe all way to the bottom wall.

 September 26, 2015, 16:57 2D to 3D block by rotation #25 Member   David Join Date: Aug 2013 Posts: 72 Rep Power: 12 Hi, all. I´m new in ICEM. I read ICEM tutorials and tried to mesh a simple 3D axisymmetric geometry that is shown in Figure 1. I want to mesh this geometry using 2D to 3D blocking method. Therefore, I meshed the 2D block that is shown in figure 2 and tried to rotate this 2D block to mesh the 3D geometry. The problem is ICEM cannot mesh this geometry using the mentioned method (Figure 3, 4). Where do you think I am wrong?

September 28, 2015, 00:39
#26
Senior Member

Join Date: Feb 2011
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Quote:
 Originally Posted by mrkmrk Hi, all. I´m new in ICEM. I read ICEM tutorials and tried to mesh a simple 3D axisymmetric geometry that is shown in Figure 1. I want to mesh this geometry using 2D to 3D blocking method. Therefore, I meshed the 2D block that is shown in figure 2 and tried to rotate this 2D block to mesh the 3D geometry. The problem is ICEM cannot mesh this geometry using the mentioned method (Figure 3, 4). Where do you think I am wrong?
Associations?

 September 28, 2015, 02:52 #27 Member   David Join Date: Aug 2013 Posts: 72 Rep Power: 12 I have associated 4 vertexes to 4 points that exist on the 2D block corners and 4 edges to 4 curves of the 2D block. based on the some sections of tutorial I thought that face to surface association is not necessary in this case, but it is. Thank you Antanas.

 October 1, 2015, 11:15 #28 Super Moderator   Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54 did you follow the procedure in youtube tutorial ?

 October 2, 2015, 10:58 #29 Member   David Join Date: Aug 2013 Posts: 72 Rep Power: 12 Hi Sijal, Yes, It was not helpful.

October 2, 2015, 11:39
#30
Super Moderator

Sijal
Join Date: Mar 2009
Posts: 4,553
Blog Entries: 6
Rep Power: 54
Quote:
 Originally Posted by mrkmrk Hi Sijal, Yes, It was not helpful.
Thankyou

 Tags 2d to 3d rotate, blocking, faulty mesh