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- W2091789503 abstract "We address the conservation of angular momentum for cell-centered discretization of compressible fluid dynamics on general grids. We concentrate on the Lagrangian step which is also sufficient for Eulerian discretization using Lagrange+Remap. Starting from the conservative equation of the angular momentum, we show that a standard Riemann solver (a nodal one in our case) can easily be extended to update the new variable. This new variable allows to reconstruct all solid displacements in a cell, and is analogous to a partial Discontinuous Galerkin (DG) discretization. We detail the coupling with a second-order Muscl extension. All numerical tests show the important enhancement of accuracy for rotation problems, and the reduction of mesh imprint for implosion problems. The generalization to axi-symmetric case is detailed." @default.
- W2091789503 created "2016-06-24" @default.
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- W2091789503 date "2015-06-01" @default.
- W2091789503 modified "2023-09-24" @default.
- W2091789503 title "Angular momentum preserving cell-centered Lagrangian and Eulerian schemes on arbitrary grids" @default.
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- W2091789503 doi "https://doi.org/10.1016/j.jcp.2015.02.032" @default.
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