[ICEM] Mesh unable to follow curved geometry

diamondx · June 14, 2012, 16:37

i could merge. i updated the project in dropbox it should be synchronized depending on your internet speed file name is "scaloped flipper_byali"

Ananthakrishnan · June 14, 2012, 16:51

I tried the same but i got lot of errors..

..Pleaseeee tell me the procedure you followed with values...

Ananthakrishnan · June 14, 2012, 16:55

I am really sorry..In that project i didnt convert structured mesh to unstructured. I directly used the structured mesh to create unstructured tetra mesh.
Please delete the mesh and convert the pre mesh to unstructured before creating the tetra mesh..
Sorry again...
I think the files got corrupted. If required pls use this
https://www.dropbox.com/s/8lv33j8pp4...fliperwing.rar

mackr · July 5, 2012, 11:23

Hi,
sorry for posting here, but I have similiar problems with mesh merging. Maybe you can help?
Whenever I make hex mesh, then convert it to unstructered, then i want to make tetra mesh for different part (I set create mesh for only visible parts, and use exisiting mesh from parts with hex unstructered mesh) hex mesh disaapears. Am I doing something wrong?

diamondx · July 5, 2012, 11:49

i think when you create your mesh, it re meshes everything like a resetting. What i do is separate the parts by surfaces so i don't lose anything. then that surface will be used for merging.

mackr · July 6, 2012, 03:15

Yes, these regions are seperated by internal wall. But i think I've managed to do this. After using hexa mesh to create tetra on difeerent region, i just convert pre-mesh to unstructured mesh again, and click 'merge' when icem asks me what to do.
Thanks for your help anyway

Cheers

Ananthakrishnan · July 7, 2012, 03:15

mackr,
1. The merge which icem proposes is not the "merge" which was meant in this thread.
2. what you did was just to create "non conformal mesh" ie mesh nodes are not connected at the interface.they are kind of hanging.
3. after you convert the structured mesh you must be having both the meshes. So to have conformal meshes (ie to join the nodes) go to edit mesh and merge nodes.

Ananthakrishnan · July 7, 2012, 03:15

Just a small note.. I just found out that, if you use fluent you dont have to merge the meshes. Fluent takes care of non conformal meshes as well.
You just have to define the "interface" in "mesh interfaces" in fluent and it will run normally. Even the size of the structured and unstructured elements at the interface does not matter..

June 14, 2012, 16:37		#21
diamondx Super Moderator Ghazlani M. Ali Join Date: May 2011 Location: Tokyo, Japan Posts: 1,385 Blog Entries: 23 Rep Power: 29	i could merge. i updated the project in dropbox it should be synchronized depending on your internet speed file name is "scaloped flipper_byali" __________________ Regards, New to ICEM CFD, try this document --> https://goo.gl/KAOIwm Ali

July 5, 2012, 11:49		#25
diamondx Super Moderator Ghazlani M. Ali Join Date: May 2011 Location: Tokyo, Japan Posts: 1,385 Blog Entries: 23 Rep Power: 29	i think when you create your mesh, it re meshes everything like a resetting. What i do is separate the parts by surfaces so i don't lose anything. then that surface will be used for merging. __________________ Regards, New to ICEM CFD, try this document --> https://goo.gl/KAOIwm Ali

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June 14, 2012, 16:51		#22
Ananthakrishnan Senior Member Ananthakrishnan.A.S Join Date: Feb 2012 Location: Mumbai (Bombay), India Posts: 157 Rep Power: 16	I tried the same but i got lot of errors.. ..Pleaseeee tell me the procedure you followed with values...

June 14, 2012, 16:55		#23
Ananthakrishnan Senior Member Ananthakrishnan.A.S Join Date: Feb 2012 Location: Mumbai (Bombay), India Posts: 157 Rep Power: 16	I am really sorry..In that project i didnt convert structured mesh to unstructured. I directly used the structured mesh to create unstructured tetra mesh. Please delete the mesh and convert the pre mesh to unstructured before creating the tetra mesh.. Sorry again... I think the files got corrupted. If required pls use this https://www.dropbox.com/s/8lv33j8pp4...fliperwing.rar

July 5, 2012, 11:23		#24
mackr New Member Maciej Join Date: Jun 2012 Location: Poland Posts: 10 Rep Power: 14	Hi, sorry for posting here, but I have similiar problems with mesh merging. Maybe you can help? Whenever I make hex mesh, then convert it to unstructered, then i want to make tetra mesh for different part (I set create mesh for only visible parts, and use exisiting mesh from parts with hex unstructered mesh) hex mesh disaapears. Am I doing something wrong?

July 6, 2012, 03:15		#26
mackr New Member Maciej Join Date: Jun 2012 Location: Poland Posts: 10 Rep Power: 14	Yes, these regions are seperated by internal wall. But i think I've managed to do this. After using hexa mesh to create tetra on difeerent region, i just convert pre-mesh to unstructured mesh again, and click 'merge' when icem asks me what to do. Thanks for your help anyway Cheers

July 7, 2012, 03:15		#27
Ananthakrishnan Senior Member Ananthakrishnan.A.S Join Date: Feb 2012 Location: Mumbai (Bombay), India Posts: 157 Rep Power: 16	mackr, 1. The merge which icem proposes is not the "merge" which was meant in this thread. 2. what you did was just to create "non conformal mesh" ie mesh nodes are not connected at the interface.they are kind of hanging. 3. after you convert the structured mesh you must be having both the meshes. So to have conformal meshes (ie to join the nodes) go to edit mesh and merge nodes.