CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > FLUENT

GAMBIT: Merging of 2 pipes problem

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 10, 2003, 23:37
Default GAMBIT: Merging of 2 pipes problem
  #1
Jack T
Guest
 
Posts: n/a
I have done 2 pipes using cooper scheme mesh and now i need to join 1 pipe at a small angle to the longer pipe in the middle. How can this be done? I have tried to split one volume with another, but the cooper mesh will be deleted and i cannot re-mesh it. I really need help on this, please respond, thanks.

Jack
  Reply With Quote

Old   September 11, 2003, 06:10
Default Re: GAMBIT: Merging of 2 pipes problem
  #2
Mcgregor
Guest
 
Posts: n/a
Hello Jack,

I think that you would be better to remove the 2 meshes from the pipes and then 'merge' the volumes prior to meshing.

You will not be able use the cooper scheme for meshing, but if i understand the problem correctly then when you try to merge the meshed pipes, you are trying to modify previously meshed elements.

Once the geometry is merged, mesh using Tetrahedral elements. You can predefine surface meshes using triangular elements

Good luck

Mc
  Reply With Quote

Old   September 11, 2003, 08:07
Default Re: GAMBIT: Merging of 2 pipes problem
  #3
ap
Guest
 
Posts: n/a
When you do a logical operation on two meshed entities, GAMBIT automatically remove the mesh from the involved geometry.

Just join the two pipes and then mesh them. I agree with Mcgregor, when he suggests to use a thetrahedral grid.

Hi

ap
  Reply With Quote

Old   September 30, 2003, 02:50
Default Re: GAMBIT: Merging of 2 pipes problem
  #4
Alamgir
Guest
 
Posts: n/a
There is another way to use cooper scheme.

Make two geometries then merge it. Make another pipe (bigger) with same size and place in the same place where previous one placed then split the merged geometry with the new one, now u have two volumes. Now mesh the large pipe with tretrahedral and small one with cooper scheme.

If you want further: before meshing devide the large pipe into three pieces (middle portion would be as small as it covers the joint surface) then use cooper for the small pipe and in two end sections of the large pipe, and tretrahedral for the smallest one.

Alamgir
  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
Gambit geometry problem cestrin FLUENT 3 July 4, 2012 02:33
Gambit - meshing over airfoil wrapping (?) problem JFDC FLUENT 1 July 11, 2011 05:59
Problem importing iges file to Gambit Tassos FLUENT 0 May 7, 2008 04:28
Having problem in creating a volume mech in GAMBIT Jake FLUENT 1 April 25, 2008 05:01
GAMBIT problem ankit FLUENT 1 January 31, 2008 16:58


All times are GMT -4. The time now is 05:35.