Dec 3 – 4, 2020
Virtuel
Europe/Paris timezone

Session

Session parallèle 9

10
Dec 4, 2020, 10:00 AM
Zoom (Virtuel)

Zoom

Virtuel

Salle 1 : https://zoom.us/j/94929969299 Salle 2 : https://zoom.us/j/98740649245 Salle 3 : https://zoom.us/j/99534523679

Description

CLIQUER ICI POUR REJOINDRE LA SALLE 3

Président.e de session : Geoffrey Beck

Modérateur.trice : Francky Luddens

Presentation materials

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  1. Khadija Talali (LMAP, Universite de Pau et des Pays de l’Adour, CNRS, E2S UPPA, 64000 Pau, France---L2M3S-ENSAM, Université Moulay Ismaïl, Meknès 50000, Morocco)
    12/4/20, 10:00 AM

    Abstract
    We consider a sharp-diffuse interfaces seawater intrusion model [3] in
    coastal aquifers. This process leads to a coupled system of two nonlinear parabolic partial differential equations simulating two immiscible fluids considering the dynamics of transition zones.

    To the discretization in time, we apply a cell-centred Multi-Point Flux Approximation (MPFA-O) finite volume...

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  2. Gaston Vergara-Hermosilla
    12/4/20, 10:30 AM

    Abstract
    In this work we present the mathematical model and simulations of a particular wave energy converter, the so-called oscillating water column. In this device, waves governed by the one- dimensional nonlinear shallow water equations arrive from offshore, encounter a step in the bottom and then arrive into a chamber to change the volume of the air to activate the turbine. The system...

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  3. Katia AIT AMEUR (CMAP, Ecole Polytechnique)
    12/4/20, 11:00 AM

    In the field of nuclear energy, computations of complex two-phase flows are required for the design and safety studies of nuclear reactors. In general, there exists two families of numerical methods for the simulation of two-phase flows. Firstly, colocated schemes ([2]) are usually used on unstructured meshes where the unknowns are located in the same place (cell-centered). On the other hand,...

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  4. Marie Touboul (Aix Marseille Univ, CNRS, Centrale Marseille, LMA UMR 7031, Marseille, France)
    12/4/20, 11:30 AM

    Le problème physique concerne la propagation d'ondes scalaires dans le cadre de l'élasticité linéaire anti-plane en 2D à travers une rangée périodique d'inclusions $\cup_i\Omega_i$ intégrée dans une matrice $\Omega_m$, les deux milieux étant supposés homogènes et isotropes. La longueur d'onde $\lambda$ dans la matrice est supposée être beaucoup plus grande que l'espacement $h$ entre les...

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  5. Edoardo Bocchi (Departamento Análisis Matemático y IMUS, Universidad de Sevilla)
    12/4/20, 12:00 PM

    In this talk we present a nonlinear mathematical model of a particular wave energy converter, the so-called oscillating water column. In this device, waves governed by the one-dimensional nonlinear shallow water equations arrive from the offshore, encounter a step in the bottom topography and then arrive into a chamber to change the volume of the air to activate the turbine. The system is...

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  6. Frédéric Marazzato (Louisiana State University)
    12/4/20, 12:30 PM

    Les matériaux de Cosserat, introduits dans [1], comparés aux matériaux standards de Cauchy, contiennent en sus une micro-rotation locale notée $\phi$. Leur cinématique est donc plus riche et permet de faire apparaître des effets d'échelles dans certains calculs. L'utilisation des matériaux de Cosserat est par exemple indiquée dans le calcul du cisaillement de failles pour lesquels les calculs...

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