Local time-stepping procedures for the space-time conservation element and solution element method

Sin Chung Chang, Yuhui Wu, Vigor Yang, Xiao Yen Wang

研究成果: Article同行評審

23 引文 斯高帕斯(Scopus)

摘要

A local time-stepping procedure for the space-time conservation element and solution element (CESE) method has been developed. This new procedure allows for variation of time-step size in both space and time, and can also be extended to become multi-dimensional solvers with structured/unstructured spatial grids. Moreover, it differs substantially in concept and methodology from the existing approaches. By taking full advantage of key concepts of the CESE method, in a simple and efficient manner it can enforce flux conservation across an interface separating grid zones of different time-step sizes. In particular, no correction pass is needed. Numerical experiments show that, for a variety of flow problems involving moving shock and flame discontinuities, accurate and robust numerical simulations can be achieved even with a reduction in time-step size on the order of 10 or higher for grids across a single interface.

原文English
頁(從 - 到)359-380
頁數22
期刊International Journal of Computational Fluid Dynamics
19
發行號5
DOIs
出版狀態Published - 2005 七月

All Science Journal Classification (ASJC) codes

  • 計算力學
  • 航空工程
  • 凝聚態物理學
  • 能源工程與電力技術
  • 材料力學
  • 機械工業

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