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论文类型：期刊论文

发表时间：2013-01-01

发表刊物：PROGRESS IN COMPUTATIONAL FLUID DYNAMICS

收录刊物：SCIE、EI、Scopus

卷号：13

期号：1

页面范围：1-10

ISSN号：1468-4349

关键字：AMR; adaptive mesh refinement; flood modelling; SWEs; shallow water equations; Godunov-type scheme; dam break; numerical accuracy

摘要：Aiming to provide accurate and efficient solutions to complex flood waves induced by dam breaks and flash floods, this work introduces a structured adaptive grid based model that solves the 2D shallow water equations using a first-order finite volume Godunov-type scheme. The computational grids dynamically evolves according to the local topographic features, moving wet-dry interfaces and other flow features involving sharp surface gradients. The model is validated against two dam-break benchmark tests with experimental data. The effect of the order of numerical accuracy on the numerical results is also assessed and discussed.