Good afternoon, my simple question is, what is the difference between P elements and CG elements. Which is better to use to solve the Navier-Stokes equations.
P and CG is the same finite element.
See for instance chapter 5 of: https://kent-and.github.io/mek4250/book_jan13_2021.pdf
for an overview of finite elements used for fluid flow, or for a more throughout overview of methods for incompressible flow, see: https://www.sciencedirect.com/science/article/pii/S0309170802000520?casa_token=k-LO1VHAknwAAAAA:svWX9wKf499LrN-TDnVXLTz9vm1WAMm8AoXrk_22asEVISuUmqSCaZ6Z__H_Nv9GLAxxe-0
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