[mohameditdh]

Hello guys,
I encountered a problem with transforming my geometry already made by Gambit software to Converge CFD. Please help me out.
Problem description is here:
I will simulate a dual fuel combustion using Converge CFD, I have already a file.dbs made by Gambit and I want to read it by Converge. I tried before iges(gambit) after Stl (Solidworks) finally (Converge CFD) but I didn't like the distribution of the triangle (not uniform) I afraid that will affect the accuracy of my future results
I don't know if I have given a sufficient description.
Your help is highly appreciated.

[tmburton]

Hello,

The only geometry format that CONVERGE Studio can read in is .stl currently. You will need to adjust the .stl resolution parameters in the package you use to export the .stl file in order to improve the quality of the triangulation.

Best regards,

Tristan

[mohameditdh]

Hi Tristan Burton;
Thanks, i will try to do that I use Gamit- Solidworks-CONVERGE CFD
do you have any other recommendations to enhance triangulation quality
Regards

[tmburton]

Hello,

I haven't used the tools you mentioned, but I know that in SolidWorks there are two control parameters for producing .stl files. One of the parameters controls the maximum error in the distance between the triangulated surface and the original surface, and the other controls angular resolution of the triangulation. Keep in mind that you want the minimum number of triangles required to achieve the required geometric fidelity, you don't need equilateral triangles as CONVERGE only uses the triangulation to cut the Cartesian cells, not to produce a tetrahedral volume mesh.

Best regards,

Tristan

[mohameditdh]

Hello;
what do you think about my STL geometry do you have any recommendations for me in order to reduce time calculation and produce a good quality mesh triangulation
Regards

[tmburton]

Hello,

It looks pretty good, although I might go with 1.5-2x finer angular resolution to get more points around a circle.

Best regards,

Tristan