HoWil wrote: ↑Sat Aug 08, 2020 8:43 pm
Phu... this one was interesting....
Its the geometry.... don't ask my why... I deleted the wire copied over the wire form my model, assigned all conditions again and it works.....
I can answer the 'why'. It's actually the y-coordinates of the points of the wire.
In your file, they have values in the range of 10^-11 or 10^-12 so I assumed that setting them as 0 should be more clean.
But I was wrong there. Setting the exact values did the trick.
Now for the results, there is one issue which is the import/export of the mesh.
If you generate the mesh and use it for getting the results then you get:
- Results in MKS units.
- flow_step_results.png (50.52 KiB) Viewed 2109 times
This matches nicely with HoWil's and the result in the tutorial. It has mesh details:
Code: Select all
========================== Dump contents of mesh ==========================
1) Total number of nodes: 1951
2) Total number of edges: 130
3) Total number of faces: 910
4) Total number of polygons: 0
5) Total number of volumes: 0
6) Total number of polyhedrons: 0
7) Total number of linear edges: 0
8) Total number of linear faces: 0
9) Total number of linear volumes: 0
10) Total number of quadratic edges: 130
11) Total number of quadratic faces: 910
11.1) Number of quadratic triangles: 910
11.2) Number of quadratic quadrangles: 0
12) Total number of quadratic volumes: 0
===========================================================================
But when you export the same mesh, and import it in the example you get:
- MKS units again.
- flow_step_no_edges.png (19.41 KiB) Viewed 2109 times
The mesh here becomes:
Code: Select all
========================== Dump contents of mesh ==========================
1) Total number of nodes: 1951
2) Total number of edges: 0
3) Total number of faces: 910
4) Total number of polygons: 0
5) Total number of volumes: 0
6) Total number of polyhedrons: 0
7) Total number of linear edges: 0
8) Total number of linear faces: 0
9) Total number of linear volumes: 0
10) Total number of quadratic edges: 0
11) Total number of quadratic faces: 910
11.1) Number of quadratic triangles: 910
11.2) Number of quadratic quadrangles: 0
12) Total number of quadratic volumes: 0
===========================================================================
As you can see, all the edges are lost.
In fact I checked with other examples having Tria6 mesh and all of them have no edges.
Though it has no effect on the result but only the visualisation in Elmer (no other Tria6 example is solvable by Elmer and maybe that's why we never noticed).
Also, quoting the result from the GUI tutorial:
the minimum and maximum lateral velocities are -0.1666 m/s and 1.5 m/s, respectively
Our results don't seem to match with this.
Updated example:
https://github.com/Sudhanshu-Dubey14/Fr ... b1f4a6a189
