open TELEMAC-MASCARET The mathematically superior suite of solvers

Dear All
I have started my simulation by telemac2d. The slf and cli files are created by BK. I received this error when checking my mesh:
SMALLEST DISTANCE BETWEEN TWO POINTS: 28.822466340978394
BETWEEN POINTS: 57659 AND 57837
POINT 1 HAS ONLY 2 NEIGHBOURS
POINT 62 HAS ONLY 2 NEIGHBOURS
POINT 148 HAS ONLY 2 NEIGHBOURS
POINT 1209 HAS ONLY 2 NEIGHBOURS
POINT 1684 HAS ONLY 2 NEIGHBOURS
POINT 1818 HAS ONLY 2 NEIGHBOURS
POINT 4492 HAS ONLY 2 NEIGHBOURS
POINT 6987 HAS ONLY 2 NEIGHBOURS
POINT 9657 HAS ONLY 2 NEIGHBOURS
POINT 12920 HAS ONLY 2 NEIGHBOURS
POINT 16278 HAS ONLY 2 NEIGHBOURS
POINT 16468 HAS ONLY 2 NEIGHBOURS
POINT 17465 HAS ONLY 2 NEIGHBOURS
POINT 17481 HAS ONLY 2 NEIGHBOURS
POINT 17739 HAS ONLY 2 NEIGHBOURS
POINT 18483 HAS ONLY 2 NEIGHBOURS
POINT 19083 HAS ONLY 2 NEIGHBOURS
POINT 19769 HAS ONLY 2 NEIGHBOURS
POINT 19963 HAS ONLY 2 NEIGHBOURS
POINT 28723 HAS ONLY 2 NEIGHBOURS
POINT 36481 HAS ONLY 2 NEIGHBOURS
POINT 42102 HAS ONLY 2 NEIGHBOURS
POINT 43925 HAS ONLY 2 NEIGHBOURS
POINT 46913 HAS ONLY 2 NEIGHBOURS
POINT 50096 HAS ONLY 2 NEIGHBOURS
POINT 51792 HAS ONLY 2 NEIGHBOURS
POINT 51906 HAS ONLY 2 NEIGHBOURS
POINT 52443 HAS ONLY 2 NEIGHBOURS
POINT 53746 HAS ONLY 2 NEIGHBOURS
POINT 54173 HAS ONLY 2 NEIGHBOURS
POINT 54990 HAS ONLY 2 NEIGHBOURS
POINT 55404 HAS ONLY 2 NEIGHBOURS
POINT 58408 HAS ONLY 2 NEIGHBOURS
POINT 59818 HAS ONLY 2 NEIGHBOURS
POINT 60392 HAS ONLY 2 NEIGHBOURS
POINT 60710 HAS ONLY 2 NEIGHBOURS
POINT 61410 HAS ONLY 2 NEIGHBOURS
POINT 62761 HAS ONLY 2 NEIGHBOURS
POINT 63793 HAS ONLY 2 NEIGHBOURS
POINT 65134 HAS ONLY 2 NEIGHBOURS
POINT 65780 HAS ONLY 2 NEIGHBOURS
POINT 66215 HAS ONLY 2 NEIGHBOURS
POINT 66977 HAS ONLY 2 NEIGHBOURS
POINT 67136 HAS ONLY 2 NEIGHBOURS
POINT 67639 HAS ONLY 2 NEIGHBOURS
POINT 69556 HAS ONLY 2 NEIGHBOURS
POINT 72088 HAS ONLY 2 NEIGHBOURS
POINT 73237 HAS ONLY 2 NEIGHBOURS
POINT 75370 HAS ONLY 2 NEIGHBOURS
POINT 75970 HAS ONLY 2 NEIGHBOURS
POINT 76050 HAS ONLY 2 NEIGHBOURS
POINT 76905 HAS ONLY 2 NEIGHBOURS
POINT 82240 HAS ONLY 2 NEIGHBOURS
POINT 89877 HAS ONLY 2 NEIGHBOURS
54 OVERCONSTRAINED TRIANGLES

What should I do to remove these elements?

drive.google.com/drive/folders/1f0M4Htrg...3YAuiUSK?usp=sharing

Hello,

As written when using CHECKING THE MESH = YES, you have overconstrained elements , what is not recommended. That means that you have triangles which nodes are all located on boundaries and nothing can change in these kinds of elements. See e.g. the triangle at the bottom left hand corner.

Anyway, I think you should redo your mesh. You also have flat elements close to some island boundaries and the transition of elements sizes from your refined area to the other area is quite fast.

As you seem to have built your mesh with BK, I let BK users or developers answer you (I cannot use BK).

Hope this helps,

Chi-Tuan

To get details of your mesh... from within Blue Kenue 3.12.2-alpha:

1. Select the mesh in the workspace
2. View > T3 Mesh Toolbar
3. Click Analyse Mesh button
4. Use the mesh editing tools to correct the mesh and/or regenerate your mesh from scratch

Kindly,
Alan

And here is your data displayed in a 2D View with "surface" rendering (not wireframe rendering). The T3 Mesh Toolbar is goes down the middle; between the workspace and the 2D View. Here is a screen snapshot of what I see...