2D circular mesh extrusion

[Hadi Morovvatju]

Hi,

I hope you-all are doing okay. Btw I'm new to deal.ii and C++. Actually I'm trying to generate 3D cylinder-shaped grid, fully structured hex mesh as depicted in lethe documentation (attached to post). It seems that refining a 3D hyper_cube would produce the target grids. So I successfully generated 2D mesh which shaped as a circular surface (attached to post). Then tried out extruding it, but it comes up that refined mesh is not allowed to get extruded, according to deal.ii manual. I'm also a bit confused about setting multiple manifolds to specific faces of the grid. Honestly I tried a lot, but was not so successful. I'm gonna attach target mesh images (4 different mesh types) and my 2D generated meshes. If anyone could provide any help to reach target 3D meshes, it would be greatly appreciated. 

Thank you

grids in lethe documentation:

And here are 2D meshes I generated:

[Daniel Arndt]

Hadi,

How are you generating these meshes? Cab you use GridGenerator::cylinder (https://www.dealii.org/current/doxygen/deal.II/namespaceGridGenerator.html#a5cdda7b4a76d509af7d1a8dc1320ddb0)?

Best,

Daniel

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[blais...@gmail.com]

Dear Hadi,

The Lethe code to generate all of these cylinders is fully available only. Might as well just reuse it :)

Everything starts here:

https://github.com/lethe-cfd/lethe/blob/master/source/core/grids.cc#L162

This should help you reproduce these kind of grids

[Hadi Morovvatju]

Hello again,

Thank you so much for your help. Yes, you're totally right. The lethe code is accessible :)