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

[ICEM] Meshing of pipes with a nozzle

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

Like Tree4Likes
  • 1 Post By Far
  • 1 Post By diamondx
  • 1 Post By raghav
  • 1 Post By raghav

Reply
 
LinkBack Thread Tools Display Modes
Old   December 19, 2013, 11:38
Default Meshing of pipes with a nozzle
  #1
New Member
 
nethmech's Avatar
 
Prabodh
Join Date: Dec 2013
Location: Eindhoven, Netherlands
Posts: 6
Rep Power: 3
nethmech is on a distinguished road
Send a message via AIM to nethmech
Hello

I need help to mesh this geometry. I have tried to make Hexamesh using ICEM CFD but I haven't been able to maintain the quality.

https://www.dropbox.com/sh/18thrf5u3tp9slx/rWf-SA-cFD

Please let me know how to mesh it.

Thanks
Attached Images
File Type: jpg Pipe_HR_1.jpg (38.6 KB, 17 views)
File Type: jpg Pipe_HR_2.jpg (42.1 KB, 18 views)
File Type: jpg Pipe_HR_3.jpg (31.6 KB, 17 views)
nethmech is offline   Reply With Quote

Old   December 20, 2013, 15:26
Default
  #2
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
Somthing I tried before going back home. Not sure if it's correct, but you can get inspiration. I will get back on it if you need my help !!!

https://dl.dropboxusercontent.com/u/...86/Desktop.zip
__________________
Regards,
New to ICEM CFD, try this document --> http://goo.gl/G2gkE
Ali
diamondx is offline   Reply With Quote

Old   December 21, 2013, 04:13
Default
  #3
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,905
Blog Entries: 6
Rep Power: 38
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
structured mesh of T-junction pipe

http://cfd-consultancy.webs.com/tutorials

T Junction Meshing using ICEM CFD

Solid wall meshing in T junction
Far is offline   Reply With Quote

Old   December 21, 2013, 10:23
Default
  #4
New Member
 
nethmech's Avatar
 
Prabodh
Join Date: Dec 2013
Location: Eindhoven, Netherlands
Posts: 6
Rep Power: 3
nethmech is on a distinguished road
Send a message via AIM to nethmech
Thanks guys for the help.

I looked at the various files and tried to improve the mesh in my geometry. However I couldn't succeed entirely. The mesh now covers the profile/geometry however the nodes are not connected at several places.

Kindly give me feedback/advice on how to rectify the connectivity issues.

https://www.dropbox.com/sh/18thrf5u3tp9slx/rWf-SA-cFD
nethmech is offline   Reply With Quote

Old   December 21, 2013, 10:41
Default
  #5
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,905
Blog Entries: 6
Rep Power: 38
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
things is that , you have to add more ogrids and splits as compared to previous threads
nethmech likes this.
Far is offline   Reply With Quote

Old   December 21, 2013, 11:17
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
inside is complicated ,yeah not that easy !!!
nethmech likes this.
__________________
Regards,
New to ICEM CFD, try this document --> http://goo.gl/G2gkE
Ali
diamondx is offline   Reply With Quote

Old   December 21, 2013, 17:07
Default
  #7
New Member
 
nethmech's Avatar
 
Prabodh
Join Date: Dec 2013
Location: Eindhoven, Netherlands
Posts: 6
Rep Power: 3
nethmech is on a distinguished road
Send a message via AIM to nethmech
Problem solved ..
Thanks everyone.

Last edited by nethmech; December 22, 2013 at 08:30.
nethmech is offline   Reply With Quote

Old   December 23, 2013, 08:08
Thumbs up T-Pipe
  #8
Member
 
Raghav
Join Date: Jul 2010
Location: India, Karnataka
Posts: 44
Rep Power: 8
raghav is on a distinguished road
with some time spent, attained .4 quality
Attached Images
File Type: jpg T-Pipe.jpg (96.1 KB, 20 views)
Far likes this.
raghav is offline   Reply With Quote

Old   December 23, 2013, 09:13
Default
  #9
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,905
Blog Entries: 6
Rep Power: 38
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
Quote:
Originally Posted by nethmech View Post
Problem solved ..
Thanks everyone.
Excellent work
Far is offline   Reply With Quote

Old   December 23, 2013, 10:05
Default
  #10
Member
 
Raghav
Join Date: Jul 2010
Location: India, Karnataka
Posts: 44
Rep Power: 8
raghav is on a distinguished road
thanks
raghav is offline   Reply With Quote

Old   December 23, 2013, 16:15
Default
  #11
New Member
 
nethmech's Avatar
 
Prabodh
Join Date: Dec 2013
Location: Eindhoven, Netherlands
Posts: 6
Rep Power: 3
nethmech is on a distinguished road
Send a message via AIM to nethmech
Raghav can you please send me your files.
nethmech is offline   Reply With Quote

Old   December 24, 2013, 00:27
Smile ICEM - TPipe - Files
  #12
Member
 
Raghav
Join Date: Jul 2010
Location: India, Karnataka
Posts: 44
Rep Power: 8
raghav is on a distinguished road
Hi,
I have attached .tin file and .blk separately because of size constraints.

Have split the blocks into fluid and solid.

I have created some surfces to make the geometry closed. It will not harm the physics. U can define them as internal or interface in fluent.

Have put all the Surfaces in 1 part and Curves in another separate part.
you can redefine them as u want it to be.


Hope this helps you.

Regards,
Raghav
Attached Files
File Type: zip Block_Files.zip (28.9 KB, 7 views)
File Type: zip TIN_File.zip (96.5 KB, 7 views)
raghav is offline   Reply With Quote

Old   December 24, 2013, 08:36
Thumbs up
  #13
New Member
 
nethmech's Avatar
 
Prabodh
Join Date: Dec 2013
Location: Eindhoven, Netherlands
Posts: 6
Rep Power: 3
nethmech is on a distinguished road
Send a message via AIM to nethmech
Thanks Raghav.
nethmech is offline   Reply With Quote

Old   December 24, 2013, 08:43
Default
  #14
Member
 
Raghav
Join Date: Jul 2010
Location: India, Karnataka
Posts: 44
Rep Power: 8
raghav is on a distinguished road
Anytime. :-)
Was it the way u expected? ? I mean the way I split the blocks for fliud and solid?
raghav is offline   Reply With Quote

Old   December 24, 2013, 09:01
Default
  #15
New Member
 
nethmech's Avatar
 
Prabodh
Join Date: Dec 2013
Location: Eindhoven, Netherlands
Posts: 6
Rep Power: 3
nethmech is on a distinguished road
Send a message via AIM to nethmech
It was almost the way I expected. You have made concentric rings at the joint of the thin pipe and the cylindrical chamber.That's not required. Everything else in fine.

Check the files that I have attached.

I had problems in improving the mesh in ICEM CFD. However, from your files, I can see the way to improve the mesh in my files.



Thanks
Attached Files
File Type: zip block.zip (4.4 KB, 2 views)
File Type: zip tin.zip (63.7 KB, 3 views)
nethmech is offline   Reply With Quote

Old   December 24, 2013, 13:58
Smile Reg. Concentric Rings & cylindrical chamber
  #16
Member
 
Raghav
Join Date: Jul 2010
Location: India, Karnataka
Posts: 44
Rep Power: 8
raghav is on a distinguished road
Hi Prabodh,

I appreciate your feedback.

Please go through the following points.

1. Reg. Concentric Rings(curves): I know they have trivial importance. But i created them to have associativity with edges and curves. I know surface association holds good but for safer side i consider curve association for the edges. And u can see that i have not divided those surfaces with these curves. Surface is single only. And i have used those rings or curves for association only

2. Reg. Cylindrical Chamber: I created the surface because i felt only that portion did not have a solid thick wall. so created that surface to include solid thick wall.
No problem. If u want fluid portion for this region, add those blocks in solid part to fluid part. And define that thin surface as Wall in fluent or in ICEM Boundary Conditions. you will get what u wanted.

3. And regarding the file you shared: Yes i can see where the problem was in your blocking strategy. Anyways, I hope this will improve your skills and strategies

Regards,
Raghav
nethmech likes this.
raghav 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
Meshing a nozzle parvaz747 Mesh Generation & Pre-Processing 3 June 17, 2013 11:40
[ICEM] Help in meshing a 2D Nozzle????? harman79 ANSYS Meshing & Geometry 4 November 22, 2009 23:45
compressible flow in a counterflow nozzle d.vamsidhar FLUENT 0 November 24, 2005 02:45
a hole in my structure after meshing a nozzle Ho CFX 7 October 3, 2005 08:33
UDF for dynamic meshing of 2D nozzle Anant FLUENT 0 July 29, 2004 09:18


All times are GMT -4. The time now is 15:37.