[blockMesh] How to make this type of mesh in blockMesh and snappyHexMesh

BIRAJ · June 28, 2023, 01:19

I want to do a single-phase simulation in stirred tank reactor with an axisymmetric mesh like the first image where mesh can be defined in cylindrical coordinates (r, theta,z).

1stimage.jpg

I think this type of mesh can be generated with the help of m4 but I didn't find relevant tutorials on the web. Another challenge is due to the presence of a baffle, it is difficult to mesh in blockMesh.

I have already managed to make mesh by first making geometry in cad and later importing in blockMesh and snappyhexmesh like this. Thank you.

2ndimage.jpg

harshabose · July 5, 2023, 10:44

create 4 pyramids forming a cuboid, and arc the bottom edges.
A beginner video here

I would not recommend a full cylinder though, especially if you are not cutting out the axis. A wedge mesh would be better.

June 28, 2023, 01:19	How to make this type of mesh in blockMesh and snappyHexMesh	#1
BIRAJ New Member FOAMraj Join Date: Apr 2021 Posts: 19 Rep Power: 5	I want to do a single-phase simulation in stirred tank reactor with an axisymmetric mesh like the first image where mesh can be defined in cylindrical coordinates (r, theta,z). 1stimage.jpg I think this type of mesh can be generated with the help of m4 but I didn't find relevant tutorials on the web. Another challenge is due to the presence of a baffle, it is difficult to mesh in blockMesh. I have already managed to make mesh by first making geometry in cad and later importing in blockMesh and snappyhexmesh like this. Thank you. 2ndimage.jpg

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July 5, 2023, 10:44		#2
harshabose New Member LyLy Join Date: Jan 2019 Posts: 14 Rep Power: 7	create 4 pyramids forming a cuboid, and arc the bottom edges. A beginner video here I would not recommend a full cylinder though, especially if you are not cutting out the axis. A wedge mesh would be better.