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- W4299738897 abstract "We prove that uniform accuracy of almost second order can be achieved with a finite difference method applied to Navier-Stokes flow at low Reynolds number with a moving boundary, or interface, creating jumps in the velocity gradient and pressure. Difference operators are corrected to $O(h)$ near the interface using the immersed interface method, adding terms related to the jumps, on a regular grid with spacing $h$ and periodic boundary conditions. The force at the interface is assumed known within an error tolerance; errors in the interface location are not taken into account. The error in velocity is shown to be uniformly $O(h^2|log{h}|^2)$, even at grid points near the interface, and, up to a constant, the pressure has error $O(h^2|log{h}|^3)$. The proof uses estimates for finite difference versions of Poisson and diffusion equations which exhibit a gain in regularity in maximum norm." @default.
- W4299738897 created "2022-10-03" @default.
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- W4299738897 date "2015-03-19" @default.
- W4299738897 modified "2023-10-14" @default.
- W4299738897 title "Uniform error estimates for Navier-Stokes flow with an exact moving boundary using the immersed interface method" @default.
- W4299738897 doi "https://doi.org/10.48550/arxiv.1503.05810" @default.
- W4299738897 hasPublicationYear "2015" @default.
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