{ "id": "1502.00800", "version": "v1", "published": "2015-02-03T10:24:33.000Z", "updated": "2015-02-03T10:24:33.000Z", "title": "On the advantage of well-balanced schemes for moving-water equilibria of the shallow water equations", "authors": [ "Yulong Xing", "Chi-Wang Shu", "Sebastian Noelle" ], "journal": "Journal on Scientific Computing 48 (2011), 339-349", "categories": [ "math.NA" ], "abstract": "This note aims at demonstrating the advantage of moving-water well-balanced schemes over still-water well-balanced schemes for the shallow water equations. We concentrate on numerical examples with solutions near a moving-water equilibrium. For such examples, still-water well-balanced methods are not capable of capturing the small perturbations of the moving-water equilibrium and may generate significant spurious oscillations, unless an extremely refined mesh is used. On the other hand, moving- water well-balanced methods perform well in these tests. The numerical examples in this note clearly demonstrate the importance of utilizing moving-water well-balanced methods for solutions near a moving-water equilibrium.", "revisions": [ { "version": "v1", "updated": "2015-02-03T10:24:33.000Z" } ], "analyses": { "keywords": [ "shallow water equations", "moving-water equilibrium", "well-balanced schemes", "numerical examples", "water well-balanced methods perform" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }