[petsc-users] Modified Taylor-Hood elements with piece-wise constant pressure for Stokes equation

[Justin Chang]

Hello everyone,

In SNES ex62, it seems to solve the Stokes equation using TH elements
(i.e., using P2-P1 elements). However, this formulation is not locally
conservative, and as a result many people use the P2-P1/P0 elements where
the pressure space is enriched with a piece-wise constant to ensure mass
conservation at the element level.

Is such an element combination possible with the current implementation
within DMPlex?

Thanks,
Justin
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