Fluid flow inside a cylinder

General
1

I was able to follow the code in here: Test problem 1: Channel flow (Poiseuille flow) — FEniCSx tutorial (jsdokken.com) and implement it in my project.
Now, I would like to know whether there is a similar sample code for the 3D flow (may be a fluid flow inside a cylinder). I do follow the logic from this 2D example but it will be really helpful if I can have a look at a written example of the 3D version.

Appreciate your help

2

For 3D see https://github.com/jorgensd/dolfinx_ipcs/blob/main/DFG_benchmark.py

3

Thank you So much for the link!