|
[Sponsors] |
June 1, 2017, 17:56 |
U-bend Mesh in ICEM CFD
|
#1 |
New Member
John Juvco
Join Date: Jun 2017
Posts: 10
Rep Power: 8 |
Hi,
I am modeling a U-bend in ICEM CFD and I am currently obtaining a very bad mesh quality. I used 2D Surface Blocking using MOSTLY MAPPED then transformed it into 3D using MULTIZONE FILL. Then, I created an O-grid on the inlet and outlet faces to obtain an O-ring mesh. I am not really sure what is the best way to mesh this model while maintaining the O-ring mesh on the inlet and outlet. Thank you |
|
June 2, 2017, 08:25 |
|
#2 |
Senior Member
Javi
Join Date: Jan 2013
Posts: 276
Rep Power: 16 |
Hi John,
This forum is plenty of information, specialy, with respect to this topic... There is a sticky thread at the top of ANSYS Meshing & Geometry forum about "Before you start a thread, see if you can find answers here" From your explanation, I think you are trying to apply an O-grid for your U bend from inlet to outlet. If that is correct, please, take a look at all these links below : C Grid for U bend Pipe 3D Pipe Bend Mesh Pipe bend meshing using MultiZone ICEM "U" shaped pipe meshing Furthermore, you have some good videos on youtube about this topic: https://www.youtube.com/watch?v=ncV3pxQFp-s Hope all of these links help you |
|
June 2, 2017, 18:14 |
|
#3 |
New Member
John Juvco
Join Date: Jun 2017
Posts: 10
Rep Power: 8 |
Thank you! I will leave my thread here so that other people can benefit from the links you just posted.
|
|
June 12, 2017, 15:35 |
|
#4 |
New Member
John Juvco
Join Date: Jun 2017
Posts: 10
Rep Power: 8 |
Hi Javi, by any chance, do you happen to have more links regarding this problem? I still can't figure out my solution.
|
|
June 15, 2017, 11:10 |
|
#5 |
Senior Member
Javi
Join Date: Jan 2013
Posts: 276
Rep Power: 16 |
Hi John,
Prabably it 'd be better if you post some pictures of your problem |
|
June 16, 2017, 19:14 |
|
#6 |
New Member
John Juvco
Join Date: Jun 2017
Posts: 10
Rep Power: 8 |
Thank you for your reply Javi.
In picture-1: My model. I created a 3D block, then an O-grid, then deleted the central block. In picture-2: The steps I am trying to mesh my U-bend. Basically, I am stuck in the final step in the "Top down" approach. |
|
June 17, 2017, 04:45 |
|
#7 |
Senior Member
Javi
Join Date: Jan 2013
Posts: 276
Rep Power: 16 |
Hi John,
Yes, you have everything ready. So keep going!! Now, you need to associate edge to curves at inlet and outlet (3rd picture in the Top-down approach of your second attached photo; that's why you can see them in green color). Even, I can see some curves (assuming you show just curves) prepared for some splits on your blocks (4th picture in the Top-down approach of your second attached photo; that's why you can see more green color edges). Later, you could use "Split Edge" if you want your block edges get the same shape of your geometry (for example with "Automatic linear" option)! |
|
June 18, 2017, 15:02 |
|
#8 |
New Member
John Juvco
Join Date: Jun 2017
Posts: 10
Rep Power: 8 |
I see. I am good with associating edges but I am not quite sure how to do the splitting part. I tried to simply split the block and then move the nodes but I obtain a very weird block geometry with then messes up my mesh. Is there an easy way to split the block to make it look like the 4th step in the first picture? I am not sure if that's what you were referring to when you said "Automatic liner option".
|
|
June 21, 2017, 14:53 |
|
#9 |
Senior Member
Javi
Join Date: Jan 2013
Posts: 276
Rep Power: 16 |
Hi John,
It would be easier to explain you how to do it by pictures... But the only thing you need to use is "Split" button... Then you'll get 4 vertices and 4 edges.. which you need to associate to your geometry... Autmatic linear option you can use it in case you want your block edges to get the same shape of your geometry curves. Hope this helps! But if you still don't know how to do it, I recommend you to practise with ICEM CFD tutorials. It will help you to understand and embrace the different steps about blocking |
|
June 22, 2017, 16:54 |
|
#10 |
New Member
John Juvco
Join Date: Jun 2017
Posts: 10
Rep Power: 8 |
Hi Javi, I posted two pictures (one of my geometry and the other picture is the steps I am following) in comment #6. Yes, I used the split option to cut the block at the U-bend part but I am having trouble fitting the block so that it looks like the last step in the Top-Down approach in Picture 2. However, I will try to use the Automatic Liner option as you suggested!
Thank you. |
|
June 25, 2017, 07:57 |
|
#11 |
Senior Member
Javi
Join Date: Jan 2013
Posts: 276
Rep Power: 16 |
Hi John,
Ok! But, you should have a look at this video (I think it could help you): ICEM meshing tutorial on 3D pipe with 45 degree bend |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Import Mesh from ICEM CFD to CFX | Andre Almeida | CFX | 16 | April 19, 2016 04:42 |
Moving mesh | Niklas Wikstrom (Wikstrom) | OpenFOAM Running, Solving & CFD | 122 | June 15, 2014 07:20 |
ICEM CFD 5.0 - 2D to 3D Mesh Extrude | James Date | CFX | 7 | October 22, 2013 04:46 |
[ICEM] Unstructure Meshing Around Imported Plot3D Structured Mesh ICEM | kawamatt2 | ANSYS Meshing & Geometry | 17 | December 20, 2011 12:45 |
[ICEM] Problem with volume mesh in ICEM CFD | kolapoasafa | ANSYS Meshing & Geometry | 2 | September 16, 2011 04:54 |