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各向同性湍流拉格朗日速度梯度交叉相关函数的短期增长现象
方乐; Bos Wouter; 晋国栋
Source Publication中国力学大会-2015论文摘要集
2015
Conference Name中国力学大会-2015
Conference Date2015-08-16
Conference Place中国上海
Abstract发现在各向同性湍流中,拉格朗日速度梯度交叉相关函数总是存在短期增长现象。分别用动力学和运动学模型分析了该现象的成因,发现压力项可能在其中起重要作用。结果提示传统的线性衰减模型可能不能用以模拟短期演化,而需要在短期过渡为二次衰减模型。
Keyword各向同性湍流 相关函数 运动学模型 衰减模型 速度梯度 交叉相关
DepartmentLNM湍流
Language中文
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59188
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
方乐,Bos Wouter,晋国栋. 各向同性湍流拉格朗日速度梯度交叉相关函数的短期增长现象[C]中国力学大会-2015论文摘要集,2015.
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