[aashishkmishra9]

Hello everyone,
I am currently trying to simulate boiling heat transfer phenomena and need to create a 3D cylinder. I have attempted to create the cylinder using a simple code, but the resulting meshes are not satisfactory. Could anyone kindly provide an alternative code or method to generate a 3D cylinder?
Thank you very much for your help.


my code:
scale 0.001;

vertices
(
(0 0 0) // vertex 0
(7.2 -7.2 0) // vertex 1
(7.2 7.2 0) // vertex 2
(-7.2 7.2 0) // vertex 3
(-7.2 -7.2 0) // vertex 4
(7.2 -7.2 3500) // vertex 5
(7.2 7.2 3500) // vertex 6
(-7.2 7.2 3500) // vertex 7
(-7.2 -7.2 3500) // vertex 8
(0 0 3500) // vertex 17


);

blocks
(
hex (1 2 3 4 5 6 7 8) (10 10 3500) simpleGrading (1 1 1) // block 1
);

edges
(
arc 1 2 (10.182337 0 0) // edge 1
arc 2 3 (0 10.182337 0) // edge 2
arc 3 4 (-10.182337 0 0) // edge 3
arc 4 1 (0 -10.182337 0) // edge 4
arc 5 6 (10.182337 0 3500) // edge 9
arc 6 7 (0 10.182337 3500) // edge 10
arc 7 8 (-10.182337 0 3500) // edge 11
arc 8 5 (0 -10.182337 3500) // edge 12
);

[bigfootedrockmidget]

alternative code:

gmsh.model.occ.addCylinder(-2 * R, 0, 0, 4 * R, 0, 0, Rs, 4)