CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > ANSYS Meshing & Geometry

[ICEM] Etrude face

Register Blogs Members List Search Today's Posts Mark Forums Read

Like Tree8Likes
  • 1 Post By highhopes
  • 1 Post By highhopes
  • 1 Post By diamondx
  • 1 Post By highhopes
  • 1 Post By Far
  • 1 Post By Far
  • 1 Post By Far
  • 1 Post By diamondx

Reply
 
LinkBack Thread Tools Display Modes
Old   June 23, 2013, 15:16
Default Etrude face
  #1
Member
 
Join Date: Dec 2012
Posts: 33
Rep Power: 4
nabaen is on a distinguished road
Hi,
How can I extrude the faces block of cylinder to frustum in cyclone?





nabaen is offline   Reply With Quote

Old   June 23, 2013, 15:29
Default
  #2
Member
 
Join Date: Feb 2011
Posts: 48
Rep Power: 6
highhopes is on a distinguished road
Hello nabaen,

It seems you have already selected 7 of 9 faces, and clicked "extrude faces" button. After that select "extrude along curve" in the "method" drop down menu. Then select all the 9 faces, and icem cfd will prompt you to select a curve. Then, select that line connecting the red points, which are located at the ends of the frustum. Finally, select the red point located at the narrow end of the frustum and apply. Hope this helps.
nabaen likes this.
highhopes is offline   Reply With Quote

Old   June 24, 2013, 03:12
Default
  #3
Member
 
Join Date: Dec 2012
Posts: 33
Rep Power: 4
nabaen is on a distinguished road
Quote:
Originally Posted by highhopes View Post
Hello nabaen,

It seems you have already selected 7 of 9 faces, and clicked "extrude faces" button. After that select "extrude along curve" in the "method" drop down menu. Then select all the 9 faces, and icem cfd will prompt you to select a curve. Then, select that line connecting the red points, which are located at the ends of the frustum. Finally, select the red point located at the narrow end of the frustum and apply. Hope this helps.
Thank you so much for your reply.As you said I select 9 faces (you can see at picture) .after that I select the curve that connects two centers and finally I select the the red vertex.But i receive fail warning.
would you please help me?
nabaen is offline   Reply With Quote

Old   June 24, 2013, 03:33
Default
  #4
Member
 
Join Date: Dec 2012
Posts: 33
Rep Power: 4
nabaen is on a distinguished road
this is my ICEM file.would you please chek that it is posibble to extrude the blocks to frustum?https://hotfile.com/dl/230440335/013...clone.rar.html
nabaen is offline   Reply With Quote

Old   June 24, 2013, 16:49
Default
  #5
Member
 
Join Date: Feb 2011
Posts: 48
Rep Power: 6
highhopes is on a distinguished road
Unfortunately, I cannot open the project file. Some attributes might be missing. About the geometry, are you sure the curve you select is cut at the point on the wide side of frustum? If not you can try segmenting it like this
Geometry tab->Create/Modify Curve->segment curve. Then select the curve, then select the point and apply. If you receive the same error message, then try extrude faces->interactive. Select the same faces, move your mouse and associate the edges and vertices to anywhere you want ont the narrow surface of the frustum.
nabaen likes this.
highhopes is offline   Reply With Quote

Old   June 24, 2013, 20:30
Default
  #6
Super Moderator
 
diamondx's Avatar
 
Ghazlani M. Ali
Join Date: May 2011
Location: Canada
Posts: 1,291
Blog Entries: 23
Rep Power: 20
diamondx will become famous soon enough
extrude interactively then associate and move vertex
nabaen likes this.
__________________
Regards,
New to ICEM CFD, try this document --> http://goo.gl/G2gkE
Ali
diamondx is offline   Reply With Quote

Old   June 24, 2013, 23:14
Default
  #7
Member
 
Join Date: Dec 2012
Posts: 33
Rep Power: 4
nabaen is on a distinguished road
Thank you for your reply.
I received same message for interactive extrusion. "Extrusion of faces failed.
nabaen is offline   Reply With Quote

Old   June 25, 2013, 05:22
Default
  #8
Member
 
Join Date: Feb 2011
Posts: 48
Rep Power: 6
highhopes is on a distinguished road
I think I can suggest that you do an extrusion using a simple geometry like a rectangular prism from scratch and maybe you'll notice what is wrong. Or you can simply associate and move the edges and the vertices at the wide surface of the frustum to the other end and go with only slicing the blocks without extruding them.
nabaen likes this.
highhopes is offline   Reply With Quote

Old   June 25, 2013, 06:26
Default
  #9
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,969
Blog Entries: 6
Rep Power: 39
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
I tried on your geometry and extrude along curve is not working. So i used simple extrude command (fixed distance and it is working)

blocking is also attached. Although some problems are still there, but blocking is complete
Attached Files
File Type: zip cyclone.zip (36.6 KB, 8 views)
nabaen likes this.
Far is offline   Reply With Quote

Old   June 25, 2013, 10:36
Default
  #10
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,969
Blog Entries: 6
Rep Power: 39
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
Quote:
Originally Posted by diamondx View Post
extrude interactively then associate and move vertex
Ali I have never been able to use "extrude interactively" function. do you know how to do it ?
Far is offline   Reply With Quote

Old   June 25, 2013, 10:37
Default
  #11
Super Moderator
 
diamondx's Avatar
 
Ghazlani M. Ali
Join Date: May 2011
Location: Canada
Posts: 1,291
Blog Entries: 23
Rep Power: 20
diamondx will become famous soon enough
keep pressing on the middle mouse button...
__________________
Regards,
New to ICEM CFD, try this document --> http://goo.gl/G2gkE
Ali
diamondx is offline   Reply With Quote

Old   June 26, 2013, 06:18
Default
  #12
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,969
Blog Entries: 6
Rep Power: 39
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
yeah, it works
Far is offline   Reply With Quote

Old   July 9, 2013, 13:57
Default
  #13
Member
 
Join Date: Dec 2012
Posts: 33
Rep Power: 4
nabaen is on a distinguished road
Dear all,
I am a beginner in Icem.Please help me for meshing the cyclone.I could make a block for cyclone using your advice.as you can see in the picture.Now I have problem for making mesh.when I mark "pre-mesh" a few line only appears in geometry.would you please advise me for steps of meshing?



nabaen is offline   Reply With Quote

Old   August 19, 2013, 10:51
Default
  #14
Member
 
Join Date: Dec 2012
Posts: 33
Rep Power: 4
nabaen is on a distinguished road
Quote:
Originally Posted by Far View Post
I tried on your geometry and extrude along curve is not working. So i used simple extrude command (fixed distance and it is working)

blocking is also attached. Although some problems are still there, but blocking is complete
I have been involved with this cyclone a long time.
Some bad meshes are in the inlet as you can see in the attached picture.
So I tried to use your blocking strategy for this part.But it doesn't work.Would you please help me to improve this part.
Thanks a lot.
Attached Images
File Type: jpg ax.jpg (72.5 KB, 16 views)
Attached Files
File Type: zip angle.zip (58.2 KB, 1 views)
nabaen is offline   Reply With Quote

Old   August 19, 2013, 11:00
Default
  #15
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,969
Blog Entries: 6
Rep Power: 39
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
i dont think you can get rid of this problem without doing any one of the following:

1. change geometry or

2. use unstructured mesh in that region
nabaen likes this.
Far is offline   Reply With Quote

Old   August 19, 2013, 11:04
Default
  #16
Member
 
Join Date: Dec 2012
Posts: 33
Rep Power: 4
nabaen is on a distinguished road
Quote:
Originally Posted by Far View Post
i dont think you can get rid of this problem without doing any one of the following:

1. change geometry or

2. use unstructured mesh in that region
Thanks a lot.
But your mesh is better than mine.
How is it possible to use unstructured mesh in this part?
Then output to fluent will be different ?Should I use multi block?
nabaen is offline   Reply With Quote

Old   August 19, 2013, 11:13
Default
  #17
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,969
Blog Entries: 6
Rep Power: 39
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
You have to make the tetra and hexa meshes and merge them.
nabaen likes this.
Far is offline   Reply With Quote

Old   August 19, 2013, 11:56
Default
  #18
Super Moderator
 
diamondx's Avatar
 
Ghazlani M. Ali
Join Date: May 2011
Location: Canada
Posts: 1,291
Blog Entries: 23
Rep Power: 20
diamondx will become famous soon enough
My signature will bring you to a small documentation you can read about how to merge tetra and hexa if you ever decide to do that.
There is also this interesting youtube video on how to mesh a cyclone http://www.youtube.com/watch?v=KabKFrJK3fM
nabaen likes this.
__________________
Regards,
New to ICEM CFD, try this document --> http://goo.gl/G2gkE
Ali
diamondx is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Import netgen mesh to OpenFOAM hsieh Open Source Meshers: Gmsh, Netgen, CGNS, ... 32 September 13, 2011 05:50
BlockMeshmergePatchPairs hjasak OpenFOAM Native Meshers: blockMesh 11 August 15, 2008 07:36
fluent add additional zones for the mesh file SSL FLUENT 2 January 26, 2008 12:55
Axisymmetrical mesh Rasmus Gjesing (Gjesing) OpenFOAM Native Meshers: blockMesh 10 April 2, 2007 14:00
Trimmed cell and embedded refinement mesh conversion issues michele OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ... 2 July 15, 2005 04:15


All times are GMT -4. The time now is 17:32.