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

mesh missing after export in gambit

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   July 23, 2010, 02:17
Default mesh missing after export in gambit
  #1
Senior Member
 
morteza08's Avatar
 
Morteza
Join Date: May 2010
Location: Iran,Islamic Republic of
Posts: 161
Rep Power: 16
morteza08 is on a distinguished road
HTML Code:
hi all
i modeled a delta wing (figure 1) in gambit..
i design two volume around it...an interior volume within the exterior..
here are the steps i did for it::
1: import vertices coordinates of the wing..
2: making 5 edges,4faces and 1 volume for the wing..
3:designing the exterior volume
4;subtracting the wing from the exterior volume
5:designing interior volune
6:splitting the bigger volume with interior volume..i mean i devide the exterior volume into two parts.
7:after this , the wing volume is created again, i deleted it again..
now i have two vlolume, one between the wing and the interior volume,,,and the other between the the interior and exterior..
8: for meshing, first i mesh all 4 faces of the wing, then i mesh the space between wing and interior volume with small mesh, and then between interior vol. and exterior with coarse mesh..
9: then i define B.C for all 3 faces of the exterior vol as press. far field..
and define the all  volume as fluid..
10;; i export the model as mesh, and dbs..
it saves syccessfully both for dbs and mesh..
but when i import the mesh in fluent , or open the dbs file in gambit again the mesh wil changed,,,   i import the mesh file in gambit and i have the same problem ..i mean when i import them again the mesh the interior vol. and its mesh is vanished,,,also  three middle edges of the wing geomrtry is vanished too..
what will be the problem..?


and some other questions, for a delta wing in supersonic regime, is this a good modelling procedure,,,?
is it possible to create structured grid around this delta wing? plz tell me the good dimensions of the interior and exterior domains in according to the wing geometry...also what size of mesh will be enough for wing face and two vloumes?

pictures::
http://nfsh.gigfa.com/figure1.jpg
http://nfsh.gigfa.com/1.jpg
http://nfsh.gigfa.com/2.jpg
http://nfsh.gigfa.com/3.jpg
http://nfsh.gigfa.com/4.jpg












morteza08 is offline   Reply With Quote

Old   July 26, 2010, 01:10
Default
  #2
Super Moderator
 
-mAx-'s Avatar
 
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41
-mAx- will become famous soon enough
in picture 4.jpg, it seems you lost the volume mesh (only surface mesh seems to be displayed).
Before you export your mesh, check if all the volumes are meshed.
You can go to volume/summarize and filter your choice with unmeshed
__________________
In memory of my friend Hervé: CFD engineer & freerider
-mAx- is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Problems with gambit mesh lions85 FLUENT 2 August 28, 2009 19:05
export or convert gambit mesh to CGNS zaidun FLUENT 6 April 20, 2006 04:48
How to mesh a circle by Gambit? Zhengcai Ye FLUENT 5 March 24, 2006 01:04
Export gambit generated mesh moiami FLUENT 0 March 3, 2003 02:53
GAMBIT merge and export mesh sean FLUENT 4 March 8, 2001 07:50


All times are GMT -4. The time now is 01:42.