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Dynamic mesh using snappyHexMesh

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Old   June 29, 2022, 10:53
Unhappy Dynamic mesh using snappyHexMesh
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Abhinav Dixit
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Hello everyone,


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

Please see the snappyhexmeshdict attached as well snappyHexMeshDict.txt

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
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Old   July 20, 2022, 04:18
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You need to use the crinkle option on clips and slices to avoid this representation. Good news: your mesh is fine, its just visuals.
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dynamicmesh, snappyhexmesh 3d, snappyhexmesh cells

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