Adaptive large eddy simulation

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• 作者：A. Hauser ; G. Wittum
• 关键词：Large eddy simulation ; Transient grid adaption ; A posteriori indicator
• 刊名：Computing and Visualization in Science
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：17
• 期：6
• 页码：295-304
• 全文大小：2,681 KB
• 刊物类别：Computer Science
• 刊物主题：Mathematics
  Computational Mathematics and Numerical Analysis
  Computer Applications in Chemistry
  Algorithms
  Visualization
  Numerical Analysis
  Calculus of Variations and Optimal Control
  
• 出版者：Springer Berlin Heidelberg
• ISSN：1433-0369
• 卷排序：17

文摘

Several a posteriori indicators in the framework of local grid adaptation and large eddy simulation (LES) are evaluated. In LES indicators must be capable to bound not only the discretisation error, but also the modeling error. Moreover, the numerical method must be able to adapt the computational grid dynamically, as the regions requiring different resolution are not static. The performance of different indicators is evaluated in two flow configurations. It turns out that the classic residual based error indicator and the newly introduced heuristic indicator perform best.