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首页> 外文期刊>Journal of Computational Physics >Weil-Balanced Adaptive Mesh Refinement for shallow water flows
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Weil-Balanced Adaptive Mesh Refinement for shallow water flows

机译:浅水流动的平衡均衡自适应网格细化

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摘要

Well-balanced shock capturing (WBSC) schemes constitute nowadays the state of the art in the numerical simulation of shallow water flows. They allow to accurately represent discontinuous behavior, known to occur due to the non-linear hyperbolic nature of the shallow water system, and, at the same time, numerically maintain stationary solutions. In situations of practical interest, these schemes often need to be combined with some kind of adaptivity, in order to speed up computing times. In this paper we discuss what ingredients need to be modified in a block-structured AMR technique in order to ensure that, when combined with a WBSC scheme, the so-called 'water at rest' stationary solutions are exactly preserved.
机译:如今,在浅水流数值模拟中,均衡的冲击捕获(WBSC)方案已成为当今的最新技术。它们可以精确地表示由于浅水系统的非线性双曲线性质而发生的不连续行为,并同时在数值上保持平稳。在实际需要的情况下,通常需要将这些方案与某种适应性结合起来,以加快计算时间。在本文中,我们讨论了在块结构AMR技术中需要修改哪些成分,以确保当与WBSC方案结合使用时,可以准确保留所谓的“静水”固定溶液。

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