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Problematic of Incompressible Bifluid Navier-Stokes Equations Approached on Non Body Fitted Meshes

Abstract : In order to solve Navier-Stokes equations on a moving domain or with simple schemes, non body fitted meshes are chosen. The goal of this work is to introduce difficulties encountered with such a choice and to show a way to overcome them. The first part is devoted to the presentation of a modified boundary condition to take into account the fact that physical walls are approached by the mesh. A second part deals with the algorithm to solve bifluid Navier-Stokes equations. Then, bifluid flows with surface tension are considered and some applications follow. As we are concerned with computational cost, we show how fast, a mesh generation and a Poisson multigrid solver (AGMG) are. Keywords: Navier-Stokes equations, bifluid flows.
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https://hal-univ-tln.archives-ouvertes.fr/hal-01335886
Contributor : Cedric Galusinski Connect in order to contact the contributor
Submitted on : Wednesday, June 22, 2016 - 2:35:24 PM
Last modification on : Thursday, December 9, 2021 - 1:28:01 PM

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Cedric Galusinski. Problematic of Incompressible Bifluid Navier-Stokes Equations Approached on Non Body Fitted Meshes. Topical Problems of Fluid Mechanics, Feb 2016, Prague, Czech Republic. pp.51-58, ⟨10.14311/TPFM.2016.008⟩. ⟨hal-01335886⟩

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