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[snappyHexMesh] Dynamic mesh using snappyHM

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Old   June 29, 2022, 12:00
Unhappy Dynamic mesh using snappyHM
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Abhinav Dixit
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Hello everyone,

Greetings!

Currently, I am struggling in generating a dynamic mesh using SnappyHexMesh. Geometry consists of the following three parts:
1. Reactor: cylindrical, dia: 30 cm height 80 cm
2. Blade: 4 wing blade, dia 10 cm with a blade twisted at an angle
3. AMI

As the geometry is to scale to the experiment that was designed by the department.

when the meshing finishes, I get a lot of unwanted cells in one of the directions.

From the outside it looks fine and also when snapped in the X direction . But when I snap it in Y direction I see unwanted cells which are some how linked to the AMI .

Please see the snappyhexmeshdict attached as well

Could anyone explain what can be done to clean the mesh? Things that have already been tried:

1. refining and coarsing of mesh
2. turning off Decompose polyhedra in paraview.

Thank you in advance any help would be appreciated.

Kind regards
Ab

snappyHexMeshDict.txt

outside.JPG

Xplane_snap.JPG

Yplane_snap.jpg
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Old   June 29, 2022, 12:08
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Yann
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Hi Abhinav,

Your mesh is fine, this is only a visualisation issue when paraView slices the mesh.

Have a look there:
Cheers,
Yann
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Old   June 29, 2022, 12:18
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Abhinav Dixit
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Thank you Yann!! I mean now this seems like a very stupid problem.

Kind regards and cheers!!

Thank you again!!
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dynamic mesh, snappy hex mesh, snappyhexmesh 3d, snappyhexmesh cells

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