March 17th 2010
Thursday 8 September 2011 by Vincent Etienne

 

A new release of the modelling tool for seismic wave propagation in 3D elastic media is available in the restricted area.

This package contains a modelling tool for seismic wave propagation in 3D elastic media. It is based on a discontinuous Galerkin finite-element method (DG-FEM) in the time domain with P0, P1 or P2 interpolation orders (Etienne et al., 2010). The medium is discretized with tetrahedral elements and the mesh can either be built on the fly or read from disk. Boundary conditions include free surface or CPML absorbing layers. The software is written in Fortran 90 using the parallel architecture SPMD (Single Program Multiple Data) with MPI communications.

Two demonstration tests are embedded in the package : one validation test of surface-wave modelling and one example illustrating the benefits of an unstructured tetrahedral mesh when a complex topography is considered.