MOX Report on Numerical modelling of wave propagation phenomena in thermo-poroelastic media via discontinuous Galerkin methods

A new MOX report entitled “Numerical modelling of wave propagation phenomena in thermo-poroelastic media via discontinuous Galerkin methods” by Bonetti, S.; Botti, M.; Mazzieri, I.; Antonietti, P.F. has appeared in the MOX Report Collection.

The report can be donwloaded at the following link:

https://www.mate.polimi.it/biblioteca/add/qmox/25/2023.pdf

Abstract: We present and analyze a high-order discontinuous Galerkin method for the space discretization of the wave propagation model in thermo-poroelastic media. The proposed scheme supports general polytopal grids. Stability analysis and hp-version error estimates in suitable energy norms are derived for the semi-discrete problem. The fully-discrete scheme is then obtained based on employing an implicit Newmark-$\beta$ time integration scheme. A wide set of numerical simulations is reported, both for the verification of the theoretical estimates and for examples of physical interest. A comparison with the results of the poroelastic model is provided too, highlighting the differences between the predictive capabilities of the two models.