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A two-dimensional high-order well-balanced scheme for the shallow water equations with topography and Manning friction

Authors: Michel-Dansac, Victor; Berthon, Christophe; Clain, Stéphane; Foucher, Françoise;

A two-dimensional high-order well-balanced scheme for the shallow water equations with topography and Manning friction

Abstract

We develop a two-dimensional high-order numerical scheme that exactly preserves and captures the moving steady states of the shallow water equations with topography or Manning friction. The high-order accuracy relies on a suitable polynomial reconstruction, while the well-balancedness property is based on the first-order scheme from Michel-Dansac et. al., 2016 and Michel-Dansac et. al., 2017, extended to two space dimensions. To get both properties, we use a convex combination between the high-order scheme and the first-order well-balanced scheme. By adequately choosing the convex combination parameter following a very simple steady state detector, we ensure that the resulting scheme is both high-order accurate and well-balanced. The method is then supplemented with a MOOD procedure to eliminate the spurious oscillations coming from the high-order polynomial reconstruction and to guarantee the physical admissibility of the solution. Numerical experiments show that the scheme indeed possesses the claimed properties. The simulation of the 2011 Japan tsunami, on real data, further confirms the relevance of this technique.

Country
France
Keywords

high-order schemes, Water waves, gravity waves; dispersion and scattering, nonlinear interaction, shallow water equations, moving steady states, 65M12, Finite volume methods applied to problems in fluid mechanics, Numerical Analysis (math.NA), 2010 MSC: 65M08, [MATH.MATH-NA] Mathematics [math]/Numerical Analysis [math.NA], Finite volume methods for initial value and initial-boundary value problems involving PDEs, well-balanced schemes, Manning friction, Godunov-type schemes, FOS: Mathematics, [MATH.MATH-AP]Mathematics [math]/Analysis of PDEs [math.AP], [PHYS.MECA.MEFL] Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph], [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph], Mathematics - Numerical Analysis, [MATH.MATH-AP] Mathematics [math]/Analysis of PDEs [math.AP], Stability and convergence of numerical methods for initial value and initial-boundary value problems involving PDEs, [MATH.MATH-NA]Mathematics [math]/Numerical Analysis [math.NA], 65M08, 65M12

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
6
Top 10%
Average
Top 10%
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bronze