Julien Diaz

Numerical Simulation of Waves Propagation in time-domain and in harmonic Domain.

• Hou10ni

  This code has been realized in collaboration with Hélène Barucq and Élodie Estécahandy. It is based on the Interior Penalty Discontinuous Galerkin Method and computes the solution to acoustics wave propagation problem in heterogeneous media. It is able to consider both time-domain and harmonic-domain (Helmholtz). The extension to elastodynamics equation in 2D and to the coupling between elastic and acoustic has been implemented by Élodie Estecahandy

  • 2D version: this version can compute the solution to acoustic, elastodynamic or elasto-acoustic equations. It allows for the use of arbitrary high-order elements and curved elements,
  • 3D version : this version can compute the solution to acoustic and elastodynamic wave equation. The implementation of arbitrary high-order elements and curved elements and the extension to elasto-acoustic is a work in progress. Th

Analytical Solutions of Wave Propagation Problems in Stratified Media.

The two following pieces of software have been realized in collaboration with Abdelâaziz Ezziani. The parallelization of the 2D version has been realized in collaboration with Nicolas Le Goff.

• Gar6more 2D v2.0

  This code computes the analytical solution of waves propagation problems in 2D homogeneous or bilayered media, based on the Cagniard-de Hoop method. In the homogeneous case, the medium can be acoustic, elastic or poroelastic; infinite or semi-infinite with a free boundary or a wall boundary condition at its end. In the bilayered case, the following coupling are implemented (the source is assumed to be in the first medium) :

  • acoustic/acoustic
  • acoustic/elastic
  • acoustic/poroelastic
  • elastic/elastic
  • poroelastic/poroelastic

  For more information, please refer to the Gar6more2D webpage

• Gar6more 3D v2.0

  This code computes the analytical solution of waves propagation problems in 3D homogeneous or bilayered media, based on the Cagniard-de Hoop method. In the homogeneous case, the medium can be acoustic, elastic or poroelastic; infinite or semi-infinite with a free boundary or a wall boundary condition at its end. In the bilayered case, the following coupling are implemented (the source is assumed to be in the first medium) :

  • acoustic/acoustic
  • acoustic/elastic
  • acoustic/poroelastic
  • elastic/elastic
  • poroelastic/poroelastic

  For more information, please refer to the Gar6more3D webpage