Verification of an ADER-DG method for complex dynamic rupture problems

J.-P Ampuero, A.-A Gabriel, & C Pelties

Published 2014, SCEC Contribution #6046

We present results of thorough benchmarking of an arbitrary high-order derivative discontinuous Galerkin (ADER-DG) method on unstructured meshes for advanced earthquake dynamic rupture problems. We verify the method by comparison to well-established numerical methods in a series of verification exercises, including dipping and branching fault geometries, heterogeneous initial conditions, bimaterial interfaces and several rate-and-state friction laws. We show that the combination of meshing flexibility and high-order accuracy of the ADER-DG method makes it a competitive tool to study earthquake dynamics in geometrically complicated setups.

Citation
Ampuero, J., Gabriel, A., & Pelties, C. (2014). Verification of an ADER-DG method for complex dynamic rupture problems. Geoscientific Model Development, 7(3), 847-866. https://doi.org/10.5194/gmd-7-847-2014. http://dx.doi.org/10.5194/gmd-7-847-2014

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Computational Science