Reducing Numerical Artifacts by Sacrificing Well-Balance for Rotating Shallow-Water Flow
Håvard Heitlo Holm,
Florian Beiser
Abstract:We consider the problem of rotational shallow-water flow for which non-trivial rotating steady-state solutions are of great importance. In particular, we investigate a high-resolution central-upwind scheme that is well-balanced for a subset of these stationary solutions and show that the well-balanced design is the source of numerical artifacts when applied to more general problems. We propose an alternative flux evaluation that sacrifices the well-balanced property and demonstrate that this gives qualitativel… Show more
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