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

adjacent cell zones

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

Reply
 
LinkBack Thread Tools Display Modes
Old   August 21, 2007, 11:16
Default adjacent cell zones
  #1
Louisa
Guest
 
Posts: n/a
Hey,

When I check my grid as soon as I import it to fluent I get a message about a zone that has 2 adjacent cell zones. What does this mean? And how can I overcome this?

Regards, Louisa
  Reply With Quote

Old   August 21, 2007, 13:03
Default Re: adjacent cell zones
  #2
Joe
Guest
 
Posts: n/a
A zone has two fluid zones on either side of it. This shouldn't happen e.g. a fluid zone on either side of a symmetry plane.
  Reply With Quote

Old   August 21, 2007, 13:59
Default Re: adjacent cell zones
  #3
Louisa
Guest
 
Posts: n/a
so what do u suggest I do to overcome this? the certain zone it refers to is the pressure-inlet from which water enters a porous zone both on the positive and negative y-direction..
  Reply With Quote

Old   August 31, 2007, 02:55
Default Re: adjacent cell zones
  #4
Volker Pawlik
Guest
 
Posts: n/a
you mean the pressure inlet lies inside the porous zone, i.d. on both sides it is surrounded by the fluid zone of type porous?

This does not work. A pressure inlet (all zones of the type inlet and outlet) can have only one adjacent fluid zone. The only way to have one inlet at the same position with the inlet normal pointing in 2 directions is to "slit" the inlet-zone via the TUI (/grid/modify-zones/slit-face-zone) into 2 zones with the same properties. Before you can do that you have to change inlet to wall, I think, unless Fluent alread did that for you.

Or: The grid already mustn't be connected at the inlet position.

BUT: remember that the two inlet zones do not "know" each other. They are completely independent.
  Reply With Quote

Old   August 31, 2007, 06:49
Default Re: adjacent cell zones
  #5
Louisa
Guest
 
Posts: n/a
"you mean the pressure inlet lies inside the porous zone, i.d. on both sides it is surrounded by the fluid zone of type porous?"

yes, exactly that is the situation. basically, the boundary I named pressure inlet is actually a source,situated in a porous zone, but as I am new to fluent I couldnt find anything more suitable.

I will try your sugesstion to "slit" the inlet-zone! Thank you so much!

Louisa
  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
Cells with t below lower limit Purushothama CD-adapco 2 May 31, 2010 21:58
Velocity Inlet zone has two adjacent Cell zones Mohsin FLUENT 0 March 10, 2010 03:12
Trimmed cell and embedded refinement mesh conversion issues michele OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ... 2 July 15, 2005 04:15
Warning 097- AB CD-adapco 6 November 15, 2004 05:41
two adjacent cell zones. Thejasvi FLUENT 3 November 26, 2001 09:35


All times are GMT -4. The time now is 03:21.