A reduced-dissipation WENO scheme with automatic dissipation adjustment
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http://hdl.handle.net/2183/34726
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A reduced-dissipation WENO scheme with automatic dissipation adjustmentAutor(es)
Fecha
2020Cita bibliográfica
Fernández-Fidalgo, J., Ramírez, L., Tsoutsanis, P., Colominas, I., Nogueira, X. (2021). A reduced-dissipation WENO scheme with automatic dissipation adjustment. Journal of Computational Physics, 425, 109749. https://doi.org/10.1016/j.jcp.2020.109749
Resumen
[Abstract:] In this paper, we propose a novel modification to the WENO-family schemes to reduce its intrinsic dissipation. In this work, we focus on the WENO5 scheme, which is rewritten in terms of a central plus a dissipative part, and then, the dissipation is controlled based on the flow physics. This is achieved by using the automatic dissipation adjustment (ADA) method in an a posteriori approach. This methodology allows us to greatly increase the accuracy of the original scheme at the same time ensure the robustness of the numerical method. The accuracy and robustness of the proposed scheme are tested by several selected numerical benchmarks.
Palabras clave
High-order schemes
WENO
Compressible flows
Adaptive dissipation
WENO
Compressible flows
Adaptive dissipation
Descripción
Versión aceptada de https://doi.org/10.1016/j.jcp.2020.109749
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Derechos
Atribución-NoComercial-SinDerivadas 3.0 España