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中国科学院力学研究所非线性力学国家重点实验室;
Authors
何国威
董宇峰
Publication date
1 January 2014
Publisher
Abstract
对低马赫数可压缩各向同性湍流的时间统计性质、能量谱方程的EDQNM封闭问题进行了系统深入的研究:(1)首先用泰勒级数展开方法推导出拉格朗日时间尺度和欧拉时间尺度之间的关系式;(2)然后根据该关系式和swept-wave模型得到了拉格朗日时空关联;(3)最后根据得到的拉格朗日时空关联发展出弱可压缩各向同性湍流的EDQNM封闭模型,并计算出了能量谱和亚格子涡黏系数
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Institute Of Mechanics,Chinese Academy of Sciences
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Last time updated on 12/02/2018