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

[ICEM] Suggestion on how to mesh this geometry by structered(Fuel Rod)

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

Like Tree3Likes

Reply
 
LinkBack Thread Tools Display Modes
Old   March 13, 2012, 18:26
Question Suggestion on how to mesh this geometry by structered(Fuel Rod)
  #1
New Member
 
Conqueror
Join Date: Dec 2011
Location: İstanbul
Posts: 11
Rep Power: 5
fatihsinan is on a distinguished road
hello everyone, i am new at icem cfd and i have a coolant channel geometry as hexagonal and it included a cylindrical hole,coolant flow around this cylinder,and along this coolant channel there are 6 small solid structure, First of all i start by o grid splitting then i split block around these small solid,i delete all other blocks because there is a 120 degree symetry if i complete one part then i can copy to other part, But i cant properly block around small solids, Can anybody suggest a strategy for blocking? I appreciate all your help in advance, THANKS
Attached Images
File Type: jpg Untitled1.jpg (18.7 KB, 48 views)
File Type: jpg Untitled2.jpg (26.5 KB, 50 views)
File Type: jpg Untitled4.jpg (20.0 KB, 44 views)
File Type: jpg Untitled5.jpg (27.8 KB, 47 views)
fatihsinan is offline   Reply With Quote

Old   March 14, 2012, 09:26
Default
  #2
New Member
 
Conqueror
Join Date: Dec 2011
Location: İstanbul
Posts: 11
Rep Power: 5
fatihsinan is on a distinguished road
is problem statement not clearly ?
fatihsinan is offline   Reply With Quote

Old   March 14, 2012, 10:14
Default
  #3
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,916
Blog Entries: 6
Rep Power: 39
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
if you could provide tin and blk, then It would be easy to comment/help
fatihsinan likes this.
Far is offline   Reply With Quote

Old   March 14, 2012, 10:36
Default
  #4
New Member
 
Conqueror
Join Date: Dec 2011
Location: İstanbul
Posts: 11
Rep Power: 5
fatihsinan is on a distinguished road
i uploaded .tin and . blk files thank you for your interesting
Attached Files
File Type: zip project.zip (21.1 KB, 6 views)
fatihsinan is offline   Reply With Quote

Old   March 15, 2012, 15:28
Default
  #5
New Member
 
Conqueror
Join Date: Dec 2011
Location: İstanbul
Posts: 11
Rep Power: 5
fatihsinan is on a distinguished road
everybody can find solution on forum , is this geometry so hard ? or impossbile

Last edited by fatihsinan; March 15, 2012 at 16:15.
fatihsinan is offline   Reply With Quote

Old   March 24, 2012, 02:19
Default
  #6
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,916
Blog Entries: 6
Rep Power: 39
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
Inner cylinder is solid or Fluid is going through this region as well. See pic

Far is offline   Reply With Quote

Old   March 24, 2012, 04:54
Default
  #7
New Member
 
Conqueror
Join Date: Dec 2011
Location: İstanbul
Posts: 11
Rep Power: 5
fatihsinan is on a distinguished road
yes its region is solid ,and other six small pieces [SG1,SG2,SG3,SG4,SG5,SG6] are also solid,
Fluid flow around this solid cylinder as through hexagonal channel.
fatihsinan is offline   Reply With Quote

Old   March 24, 2012, 04:56
Default
  #8
New Member
 
Conqueror
Join Date: Dec 2011
Location: İstanbul
Posts: 11
Rep Power: 5
fatihsinan is on a distinguished road
fluid enter the channel from bottom of hexagonal channel,and cylinder surface is heated wall,and hexagonal channel side 6 walls are symetry condition
fatihsinan is offline   Reply With Quote

Old   March 24, 2012, 08:28
Default
  #9
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,916
Blog Entries: 6
Rep Power: 39
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
These curves are necessary? Topology can be simplified If we can delete them


Far is offline   Reply With Quote

Old   March 24, 2012, 10:26
Default
  #10
New Member
 
Conqueror
Join Date: Dec 2011
Location: İstanbul
Posts: 11
Rep Power: 5
fatihsinan is on a distinguished road
these edges are not real,i draw those while trying block,you can delete
fatihsinan is offline   Reply With Quote

Old   March 27, 2012, 06:26
Default
  #11
Member
 
jeevan kumar
Join Date: Mar 2009
Posts: 81
Rep Power: 8
jeevankumarb is on a distinguished road
Hello,

Please find the blocking attached. Hope it will be useful for you.

Regards
Attached Files
File Type: zip project_new.zip (70.6 KB, 12 views)
Far and fatihsinan like this.
jeevankumarb is offline   Reply With Quote

Old   March 27, 2012, 06:27
Default
  #12
Member
 
jeevan kumar
Join Date: Mar 2009
Posts: 81
Rep Power: 8
jeevankumarb is on a distinguished road
Sorry i forgot to mention that i haven't done the bunching properly. You can do the bunching according to your requirement.
jeevankumarb is offline   Reply With Quote

Old   March 27, 2012, 07:33
Default
  #13
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,916
Blog Entries: 6
Rep Power: 39
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
good job. Well done
Far is offline   Reply With Quote

Old   March 27, 2012, 18:06
Default
  #14
New Member
 
Conqueror
Join Date: Dec 2011
Location: İstanbul
Posts: 11
Rep Power: 5
fatihsinan is on a distinguished road
Far and jeevan kumar thank you very much,
and i wonder about strategy i did same split for blocks but i cant properly associate edge to curves ,what is the key point ?
fatihsinan is offline   Reply With Quote

Old   March 28, 2012, 10:39
Default
  #15
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,916
Blog Entries: 6
Rep Power: 39
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
http://www.4shared.com/rar/pjL8Uzmi/fuelrod.html

I have used combination of top-down and bottom up approaches. Top-down for the main blocking and bottom-up for final touches.

On other side still I have to use the extrude along curve the to finalize the blocking. Then you need to associate the newly created edges and specify edge mesh parameters.

I am trying to record the whole procedure to upload on the youtube.

PS. Could some body illustrate that how to completely block this geometry with only top-down approach.




Far is offline   Reply With Quote

Old   March 28, 2012, 11:03
Default
  #16
Senior Member
 
Sören
Join Date: Mar 2012
Posts: 102
Rep Power: 5
despaired student is on a distinguished road
@fatihsinan: where do the association-problems appear? After what operations/ in which situation?
despaired student is offline   Reply With Quote

Old   March 28, 2012, 15:33
Default
  #17
New Member
 
Conqueror
Join Date: Dec 2011
Location: İstanbul
Posts: 11
Rep Power: 5
fatihsinan is on a distinguished road
In last blocking there isnt any problem, all process is fine , well done,i wonder only about strategy because i tried same thing before opening this thread

Thanks , Far ,jeevankumarb and despaired student
fatihsinan is offline   Reply With Quote

Old   March 28, 2012, 21:34
Default
  #18
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,916
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:
i wonder only about strategy because i tried same thing before opening this thread
Did you mean the exactly same strategy by jeevankumarb and later by myself? Since I made use of top-down and bottom up and really want to know if this can be possible fully with top-down approach.

Last edited by Far; March 28, 2012 at 22:02.
Far is offline   Reply With Quote

Old   March 29, 2012, 01:13
Default
  #19
Member
 
jeevan kumar
Join Date: Mar 2009
Posts: 81
Rep Power: 8
jeevankumarb is on a distinguished road
Yes it is possible with top down aproach. But it will take more time then the Bottom up approach. Ultimately you have to decide which is the best approach and which will reduce the time and effort. For this case i think the Bottom up approach is the ideal one.
jeevankumarb is offline   Reply With Quote

Old   March 29, 2012, 03:05
Default
  #20
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,916
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:
Yes it is possible with top down aproach. But it will take more time then the Bottom up approach. Ultimately you have to decide which is the best approach and which will reduce the time and effort. For this case i think the Bottom up approach is the ideal one.
Right. Could you please comment that my approach is also similar to yours? I used mix of both approaches. Top-bottom for main blocking and bottom-up for three (3 * 2 = 6) small solid pieces.
Far 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
SnappyHexMesh for internal Flow vishwa OpenFOAM Native Meshers: snappyHexMesh and Others 23 August 6, 2014 03:50
how to set periodic boundary conditions Ganesh FLUENT 13 January 22, 2014 05:11
Mesh a geometry without stl file eysteinn OpenFOAM Native Meshers: snappyHexMesh and Others 0 May 5, 2011 10:15
fluent add additional zones for the mesh file SSL FLUENT 2 January 26, 2008 12:55
unstructured vs. structured grids Frank Muldoon Main CFD Forum 1 January 5, 1999 11:09


All times are GMT -4. The time now is 08:12.