Detecting Discontinuities Over Triangular Meshes Using Multiwavelets

Autor: Mathea J. Vuik, Jennifer K. Ryan
Přispěvatelé: Bittencourt, Marco L., Dumont, Ney A., Hesthaven, Jan S.
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Lecture Notes in Computational Science and Engineering ISBN: 9783319658698
Popis: It is well known that solutions to nonlinear hyperbolic PDEs develop discontinuities in time. The generation of spurious oscillations in such regions can be prevented by applying a limiter in the troubled zones. In earlier work, we constructed a multiwavelet troubled-cell indicator for one and (tensor-product) two dimensions (SIAM J. Sci. Comput. 38(1):A84–A104, 2016). In this paper, we investigate multiwavelet troubled-cell indicators on structured triangular meshes. One indicator uses a problem-dependent parameter; the other indicator is combined with outlier detection.
Databáze: OpenAIRE
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