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-   -   meshing a wing with tgrid (https://www.cfd-online.com/Forums/fluent/44318-meshing-wing-tgrid.html)

sandeep varma April 2, 2007 02:08

meshing a wing with tgrid
 
i imported the vertex data , created a face , swept the face and created the volume( had to stich the faces to create a volume even then) , created a cuboid covering the wing and subtracted the wing volume from cuboid volume . now i tried to mesh this using the tgrid volume mesh , but gambit returned an error " intialization failed ; perturb boundary nodes and try again " (error code 1...... ) ....!

cud someone please help help me diagonise the error and correct it........!

thanks in advance..!

Vivek Vasudevan April 2, 2007 07:04

Re: meshing a wing with tgrid
 
Hi,

I have worked on TGrid to create a volume mesh from a surface mesh and since you are trying to create a TGrid volume mesh, I presume the reasons for errors should be similar. Most likely causes for initialization failure are:

- Probably there exist duplicate nodes / entities that need to be merged before meshing - Since you stitch your geometry, there might be places where there are gaps and were inadvertently overlooked. You might want to recheck your stitched boundaries.

I havent worked extensively on Gambit and am not sure if it uses the same features as those used by TGrid.

Hope it helps.

Regards, Vivek

sandeep varma April 16, 2007 03:38

Re: meshing a wing with tgrid
 
thanks for the answer. I modelled and meshed using Gambit and was talking of the TGrid type of meshing available in gambit , but i guess u mistook it for Tgrid software. Am sorry for not being more clear with that.but i guess the problems tat u've mentioned mit infact be the same with gambit as well , coz I do remember having duplicated a vertex for completing the wing geometry using NURBS. So I'll check tat out and let u know. thanks again yaar :)!


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