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- W2519441632 abstract "We prove, for Stokes, Oseen, and Boussinesq finite element discretizations on general meshes, that grad-div stabilized Taylor-Hood velocity solutions converge to the pointwise divergence-free solution (found with the iterated penalty method) at a rate of γ−1, where γ is the grad-div parameter. However, pressure is only guaranteed to converge when (Xh,∇ ·Xh) satisfies the LBB condition, where Xh is the finite element velocity space. For the Boussinesq equations, the temperature solution also converges at the rate γ−1. We provide several numerical tests that verify our theory. This extends work in [6] which requires special macroelement structure in the mesh." @default.
- W2519441632 created "2016-09-23" @default.
- W2519441632 creator A5016015672 @default.
- W2519441632 date "2016-01-01" @default.
- W2519441632 modified "2023-10-18" @default.
- W2519441632 title "A connection between grad-div stabilized FE solutions and pointwise divergence-free FE solutions on general meshes" @default.
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- W2519441632 doi "https://doi.org/10.1137/16s015176" @default.
- W2519441632 hasPublicationYear "2016" @default.
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