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Communication dans un congrès

Two-phase model of liquid-liquid interactions with interface capturing: Application to water assisted injection molding

Abstract : In this paper, a two phase model to compute liquid-liquid flows is presented. We consider that one phase is a highly viscous thermodependent liquid (polymer phase), whereas the second one is a low viscosity low temperature fluid (water). The first part of this paper concerns capture of the interface between the water and the polymer (or determination of the phase field function). Classical VOF and Level set techniques have been implemented and were ameliorated using mesh adaptation techniques. To accurately determine the velocity field, a two-phase formulation is considered, based in the theory of mixtures, and we introduce a scalar parameter, the phase fraction quantifying the presence of each phase in each point of the computational domain. A friction type coupling between both phases is retained. Using the mixed finite element method within an eulerian framework, we calculate in a single system the whole kinematic variables for both liquids (velocity and pressure of each phase). Results are shown, for 2D and 3D parts
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Communication dans un congrès
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Dernière modification le : jeudi 24 septembre 2020 - 17:22:54
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Luisa Silva, Rodolf Lanrivain, Walid Zerguine, Andrès Rodriguez-Villa, Thierry Coupez. Two-phase model of liquid-liquid interactions with interface capturing: Application to water assisted injection molding. Materials Processing and Design, Modeling, Simulation and Applications, NUMIFORM '07: 9th International Conference on Numerical Methods in Industrial Forming Processes, Jun 2007, Porto, Portugal. pp.Pages 361-368, ⟨10.1063/1.2740838⟩. ⟨hal-00510565⟩

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