A simple clipping procedure for the dynamic mixed model based on Taylor series approximation
A simple clipping procedure for the dynamic mixed model based on Taylor series approximation
复制标题
基于泰勒级数近似的动态混合模型的简单裁剪过程
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
E. Hassel
中科院分区：
文献类型：
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作者：
N. Kornev;I. Tkatchenko;E. Hassel
提出了一种基于泰勒级数近似的简单裁剪方法，以提高动态混合模型（DMM）大涡模拟计算的稳定性。从严格的数学分析导出的削波过程使用在DMM模型中以任何方式确定的项，因此不需要额外的计算。通过对同轴射流混合器中湍流混合的计算，验证了剪切效应的影响。建议的程序有可能被扩展到LES的复杂几何湍流。版权所有© 2005年约翰威利父子有限公司。
A simple clipping procedure based on Taylor series approximation was suggested to improve the stability of LES computations using the dynamic mixed model (DMM). The clipping procedure derived from a rigorous mathematical analysis uses terms which are anyway determined in the DMM model and thus, does not require additional calculations. The effect of the clipping was tested by calculations of turbulent mixing in a coaxial jet mixer. The suggested procedure has potential to be extended to LES of complex-geometry turbulent flows. Copyright © 2005 John Wiley & Sons, Ltd.