Papers › Tent pitching and Trefftz-DG method for the acoustic wave equation

Tent pitching and Trefftz-DG method for the acoustic wave equation

4 Jul 2019arXiv:1907.02367links table onlyarchive 2025-07-28

Ilaria Perugia, Joachim Schöberl, Paul Stocker, Christoph Wintersteiger

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We present a space-time Trefftz discontinuous Galerkin method for approximating the acoustic wave equation semi-explicitly on tent pitched meshes. DG Trefftz methods use discontinuous test and trial functions, which solve the wave equation locally. Tent pitched meshes allow to solve the equation elementwise, allowing locally optimal advances in time. The method is implemented in NGSolve, solving the space-time elements in parallel, whenever possible. Insights into the implementational details are given, including the case of propagation in heterogeneous media.

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paulst/ngstrefftz officialmentioned on GitHubLGPL-3.0 report

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