arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1503.07024physics.comp-phcs.NAmath.NA
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高阶中心方案用于多维双曲问题

Higher Order Central Schemes for Multi-dimensional Hyperbolic Problems

Technische Universität Berlin(柏林工业大学);Max-Planck/Princeton Center for Plasma Physics(马克斯·普朗克/普林斯顿等离子体物理中心)

Prabal Singh Verma, Wolf-Christian Müller

AI总结:

本文讨论了多维问题中实现CWENO重建的不同方法,提出了一种四阶中心方案,展示了其四阶精度和激波捕捉能力,并与现有方案比较了数值误差和非振荡行为。

摘要:

不同实现方式的多维CWENO重建被讨论,最有效的方法被应用于开发多维双曲问题的四阶中心方案。该方案在各种非线性多维问题中展示了四阶精度和激波捕捉性质。为了展示当前中心方案的整体性能,数值误差和非振荡行为与现有多维CWENO基于的中心方案在各种多维问题中进行了比较。此外,通过比较两种方案的数值耗散和计算成本,展示了当前四阶中心方案相对于三阶实现的优势。

英文摘要:

Different ways of implementing dimension-by-dimension CWENO reconstruction are discussed and the most efficient method is applied to develop a fourth order central scheme for multi-dimensional hyperbolic problems. Fourth order accuracy and shock capturing nature of the scheme are demonstrated in various nonlinear multi-dimensional problems. In order to show the overall performance of the present central scheme numerical errors and non-oscillatory behavior are compared with existing multi-dimensional CWENO based central schemes for various multi-dimensional problems. Moreover, the benefits of the present fourth order central scheme over third order implementation are shown by comparing the numerical dissipation and computational cost between the two.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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