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

Skipping zone inlet (not referenced by grid)

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 9, 2010, 05:00
Default Skipping zone inlet (not referenced by grid)
  #1
New Member
 
vinoo
Join Date: Jan 2010
Posts: 4
Rep Power: 16
vinoo is on a distinguished road
hi friends,
when i am importing mesh from GAMBIT to fluent the messeage showing that "Skipping zone inlet (not referenced by grid)". Kindly tell me what should i do.
vinoo is offline   Reply With Quote

Old   January 11, 2010, 04:11
Default
  #2
Senior Member
 
herntan's Avatar
 
YH Tan
Join Date: Mar 2009
Location: Malaysia
Posts: 119
Rep Power: 17
herntan is on a distinguished road
put some picture please.

i guess the zone u define in gambit is not meshed.
__________________
Herntan,

Add Reputation if I am right
herntan is offline   Reply With Quote

Old   January 13, 2010, 01:22
Default Reheating furnace heat transfer
  #3
New Member
 
vinoo
Join Date: Jan 2010
Posts: 4
Rep Power: 16
vinoo is on a distinguished road
Quote:
Originally Posted by herntan View Post
put some picture please.

i guess the zone u define in gambit is not meshed.
The reheating furnace used to heat the steel slab. In this computational model, Z –direction is the symmetry plane and slabs are hanging in air through out the furnace. The furnace having different wall temp because it has different fuel amount injection through the burners which is shown in fig. The slabs are moving 0.004-0.005 m/s. At given time, let say t=0 the total slab inside the furnace is 36 slab with different temp varying from entry to exit. The temp gradient exit inside the furnace is 300 deg C to 1250 deg C over 40 length of the furnace. When we mesh slab and furnace differently and export to fluent it is showing the error message skipping zones. Slab and gas movement inside the furnace is counter current flow.
vinoo is offline   Reply With Quote

Old   January 13, 2010, 01:53
Default
  #4
Senior Member
 
herntan's Avatar
 
YH Tan
Join Date: Mar 2009
Location: Malaysia
Posts: 119
Rep Power: 17
herntan is on a distinguished road
Have u subtract out the slab from furnace when u mesh it?
Fluent will not recognize overlaping mesh i think.

Again, picture please.
__________________
Herntan,

Add Reputation if I am right
herntan is offline   Reply With Quote

Old   February 10, 2010, 11:43
Default
  #5
New Member
 
vinoo
Join Date: Jan 2010
Posts: 4
Rep Power: 16
vinoo is on a distinguished road
Quote:
Originally Posted by herntan View Post
Have u subtract out the slab from furnace when u mesh it?
Fluent will not recognize overlaping mesh i think.

Again, picture please.
Dear friends
I am meshing 3 rectangular volumes.Volume 1&3 is 40(X)*2(Y)*5(Z). Volume 2 is 40(X)*0.22(Y)*4.5(Z). In Z direction i am using Symmerty wall condtion for all volumes when defing B.C. in gambit.Volume 2 is in between Volume 1 &3.volume 1 and 3 are defind as fluid continum and volume 2 as solid continum in BC. The volume 2 top surface is Volume 1 Bottom surface simillarly Volume 2 bottom surface is Volume 3 top suraface. I used this surface as interface in BC at GAMBIT.Then i meshed with HEX map with interval size1.Mesh has generated in Gambit. But when u export to fluent check for grid it showing error message is Error:unassigned interface zone dected for interface 12 & 13 ,Error:Init_flow: unssigned interface_20, Error bject)". Kindly help to solve this interface problem. kindly tell me how to mesh the this kind of volume with symmerty plane in Z-direction.what re the B.C should i give.
regards
vinoo
vinoo is offline   Reply With Quote

Old   February 11, 2010, 02:26
Default
  #6
Senior Member
 
herntan's Avatar
 
YH Tan
Join Date: Mar 2009
Location: Malaysia
Posts: 119
Rep Power: 17
herntan is on a distinguished road
u haven't define ur interface.
Go Define>interface grid.
__________________
Herntan,

Add Reputation if I am right
herntan is offline   Reply With Quote

Old   February 15, 2010, 03:13
Default boundary entity does not contain vaild entity
  #7
New Member
 
vinoo
Join Date: Jan 2010
Posts: 4
Rep Power: 16
vinoo is on a distinguished road
Dear Herntan
what i did in gambit. First i define volume 2 top surafce as wall for and same surface defined as interface for vol-1 bottom surafce.simlary done for bottom side.when i export to fluent it is showing waring Boundary entity does not contain valid entity.

can u please tell me what should i do

regards
vinoo
vinoo is offline   Reply With Quote

Old   February 18, 2010, 20:05
Default
  #8
Senior Member
 
herntan's Avatar
 
YH Tan
Join Date: Mar 2009
Location: Malaysia
Posts: 119
Rep Power: 17
herntan is on a distinguished road
u need to define ur interface in Fluent first.
__________________
Herntan,

Add Reputation if I am right
herntan is offline   Reply With Quote

Reply


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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[CGNS] CGNS converters available mbeaudoin OpenFOAM Meshing & Mesh Conversion 137 December 14, 2018 05:20
Diffusion component at inlet Balaji FLUENT 2 August 8, 2005 08:37
how to pass bc from one zone to second zone Maria FLUENT 2 March 16, 2004 00:12
Grid Independent Solution Chuck Leakeas Main CFD Forum 2 May 26, 2000 12:18
Grid Quality and the Solution Faraz Main CFD Forum 4 January 10, 2000 19:18


All times are GMT -4. The time now is 06:36.