CFD Online Logo CFD Online URL
Home > Forums > FLUENT

ERROR: can't convert face into submappable region

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

LinkBack Thread Tools Display Modes
Old   February 6, 2008, 09:36
Default ERROR: can't convert face into submappable region
Posts: n/a
Hi, this may seem like a relatively simple question but I really need some help with this.

I am modelling in 2D an airfoil inside a circle. The airfoil is constructed from edges joining 400 vertices. I have set the number of nodes on each airfoil edge as 1. I then set the number of nodes on the circle as 400. But when I try to mesh the face GAMBIT says 'ERROR: face could not be converted to a submappable region'.

I have tried looking in the user guide but can't really find anything of much help.

I am a new user of GAMBIT and not familiar with all its functions so bare with me
  Reply With Quote

Old   February 7, 2008, 15:25
Default Re: ERROR: can't convert face into submappable reg
Posts: n/a
the one to one relation cant be found by mapping ..... i would sugest u to go through the gambit help files....
  Reply With Quote

Old   February 8, 2008, 04:47
Default Re: ERROR: can't convert face into submappable reg
Posts: n/a
Basically, what Anup means is that in order to use a mapping scheme you need the same number of nodes on the cicrle as the airfoil. You can either mesh each of these again using node count instead of defining the distance between node points as is the default and then remesh.

Or you could choose a different scheme such as a tetrahdral unstructured mesh. More advanced methods allow you to sub-divide your domain first by using the split command to split faces with edges. This then allows you to mesh your domain in individual sub-domains. It gives you more control over how much you vary the nodal density and starting inside out is good practice.

If you do this remember not to stretch mesh elements too aggressively. Try checking the quality after you mesh and aim to keep the equiangle skew below 0.85 if possible.

Good luck,


  Reply With Quote

Old   February 10, 2008, 15:48
Default Re: ERROR: can't convert face into submappable reg
Posts: n/a
yeah and also use the check button in gambit to check how many cells are beyond the max limit ( the normal practise is to keep the ratio less than 1:10 in case of sides of a quad mesh or the skewness to 0.85)
  Reply With Quote


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
Import netgen mesh to OpenFOAM hsieh Open Source Meshers: Gmsh, Netgen, CGNS, ... 32 September 13, 2011 05:50
BlockMeshmergePatchPairs hjasak OpenFOAM Native Meshers: blockMesh 11 August 15, 2008 07:36
fluent add additional zones for the mesh file SSL FLUENT 2 January 26, 2008 12:55
Axisymmetrical mesh Rasmus Gjesing (Gjesing) OpenFOAM Native Meshers: blockMesh 10 April 2, 2007 14:00
Trimmed cell and embedded refinement mesh conversion issues michele OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ... 2 July 15, 2005 04:15

All times are GMT -4. The time now is 03:06.