dc.contributor.authorLandry, Walter
dc.contributor.authorBarbot, Sylvain
dc.identifier.citationLandry, W., & Barbot, S. (2016). Gamra: Simple meshing for complex earthquakes. Computers & Geosciences, 90, 49-63. doi:10.1016/j.cageo.2016.02.014en_US
dc.description.abstractThe static offsets caused by earthquakes are well described by elastostatic models with a discontinuity in the displacement along the fault. A traditional approach to model this discontinuity is to align the numerical mesh with the fault and solve the equations using finite elements. However, this distorted mesh can be difficult to generate and update. We present a new numerical method, inspired by the Immersed Interface Method (Leveque and Li, 1994), for solving the elastostatic equations with embedded discontinuities. This method has been carefully designed so that it can be used on parallel machines on an adapted finite difference grid. We have implemented this method in Gamra, a new code for earth modeling. We demonstrate the correctness of the method with analytic tests, and we demonstrate its practical performance by solving a realistic earthquake model to extremely high precision.en_US
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.format.extent15 p.en_US
dc.relation.ispartofseriesComputers & Geosciencesen_US
dc.rights© 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).en_US
dc.subjectImmersed Interface Methoden_US
dc.titleGamra : simple meshing for complex earthquakesen_US
dc.typeJournal Article
dc.contributor.researchEarth Observatory of Singaporeen_US
dc.description.versionPublished versionen_US

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