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

flow in cylinder

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

Reply
 
LinkBack Thread Tools Display Modes
Old   November 5, 2010, 09:08
Unhappy flow in cylinder
  #1
New Member
 
lyly
Join Date: Nov 2010
Posts: 24
Rep Power: 6
ezabille is on a distinguished road
hi all,
i have a study to flow in cylinder i drow two faces one for cylinder and the other for fluid then i revolve the two faces but when i export to fluent the face between the volume of fluid and solid flouent didnt show me option coupled for it in thermal condetion ..
i dont know why ?
please help
ezabille is offline   Reply With Quote

Old   November 5, 2010, 09:45
Default
  #2
Member
 
Join Date: Oct 2009
Location: Italy
Posts: 88
Rep Power: 7
bob12 is on a distinguished road
hi
in your simulation there is an error on the lateral faces of the fluid and the solide are separeted while the face between the two zone must be one
i hope that it's usefull
best regards
bob12 is offline   Reply With Quote

Old   November 5, 2010, 12:43
Smile thank you
  #3
New Member
 
lyly
Join Date: Nov 2010
Posts: 24
Rep Power: 6
ezabille is on a distinguished road
but how can i connect the two faces between solid and fluid?
from spilt face? or there is another option?
ezabille is offline   Reply With Quote

Old   November 7, 2010, 11:18
Default Connect and disconnect
  #4
New Member
 
Anonymous
Join Date: Jun 2009
Posts: 18
Rep Power: 8
vinerm is on a distinguished road
To make a coupled wall from decoupled wall, first fuse the faces. Fluent will say that volumes are of different material but it will fuse them and create an interior. Now, convert that interior into wall and it will be a couple wall.
vinerm is offline   Reply With Quote

Old   November 8, 2010, 15:21
Unhappy but how
  #5
New Member
 
lyly
Join Date: Nov 2010
Posts: 24
Rep Power: 6
ezabille is on a distinguished road
thank u for replay
but how can i fuse faces from gambit or fluent ? from which order?
i try to spilt volumes but gambit didnt spilt and give me an error..
i have many volumes in diffrent curves so i draw in 2d then i revolve
please help
thank u all
ezabille is offline   Reply With Quote

Old   November 10, 2010, 13:26
Default
  #6
New Member
 
Anonymous
Join Date: Jun 2009
Posts: 18
Rep Power: 8
vinerm is on a distinguished road
Fusing a term used in Fluent. In Gambit, it is called connecting. So, if you are working in Gambit, just connect the faces (edges in case of 2D). And for splitting the volume, you have to create a face that crosses through the volume and then use that face for splitting. You can split volume in Fluent, too, by converting it into a wall and then splitting cell zone by region.
vinerm is offline   Reply With Quote

Old   November 12, 2010, 07:08
Default
  #7
Member
 
Join Date: Oct 2009
Location: Italy
Posts: 88
Rep Power: 7
bob12 is on a distinguished road
Hi
there are some option for unite two surface

* one is merge the surface
* another is clean-up geometry with the double surfaces option, but in this way Gambit will be to create a virtual volume that will can be a problem when you meshing
* when you drawing the geometry with accurancy
bob12 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
benchmark: flow over a circular cylinder goodegg Main CFD Forum 12 January 22, 2013 12:47
Moving a Cylinder in cross flow after solving Dynamics equations of motion maruthamuthu_venkatraman OpenFOAM 1 November 19, 2009 14:55
Flow over a flat plate & Flow over a cylinder cfdxue Main CFD Forum 0 November 27, 2007 00:26
Anybody knows smth abt the flow around a cylinder? Wenxuan Main CFD Forum 3 March 20, 2007 17:19
Flow over a cylinder Anna Main CFD Forum 9 March 24, 2006 15:32


All times are GMT -4. The time now is 09:02.