A multifractal model for linking Lagrangian and Eulerian velocity structure functions
文献类型：期刊论文
| 作者 | Dong YF(董宇峰) ; Jin GD(晋国栋); Jin, GD (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
|
| 刊名 | Acta Mechanica Sinica
 |
| 出版日期 | 2014-08 |
| 卷号 | 30期号:4页码:480-484 |
| 关键词 | Lagrangian Multifractal Eulerian Multifractal Intermittency Velocity Structure Functions |
| ISSN号 | 0567-7718 |
| 产权排序 | [Dong, Yu-Feng; Jin, Guo-Dong] Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China |
| 文献子类 | Article |
| 英文摘要 | A multifractal model is developed to connect the Lagrangian multifractal dimensions with their Eulerian counterparts. We propose that the characteristic time scale of a Lagrangian quantity should be the Lagrangian time scale, and it should not be the Eulerian time scale which was widely used in previous studies on Lagrangian statistics. Using the present model, we can obtain the scaling exponents of Lagrangian velocity structure functions from the existing data or models of scaling exponents of Eulerian velocity structure functions. This model is validated by comparing its prediction with the results of experiments, direct numerical simulations, and the previous theoretical models. The comparison shows that the proposed model can better predict the scaling exponents of Lagrangian velocity structure functions, especially for orders larger than 6. |
| 学科主题 | Engineering ; Mechanics |
| 分类号 | 二类 |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000340551700003 |
| 资助机构 | The project was supported by the National Natural Science Foundation of China (11072247, 11021262, and 11232011), National Natural Science Associate Foundation of China (NSAF) (U1230126), and 973 program of China (2013CB834100). |
| 公开日期 | 2014-09-28 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/49096]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Jin, GD (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Dong YF,Jin GD,Jin, GD . A multifractal model for linking Lagrangian and Eulerian velocity structure functions[J]. Acta Mechanica Sinica,2014,30(4):480-484. |
| APA | Dong YF,Jin GD,&Jin, GD .(2014).A multifractal model for linking Lagrangian and Eulerian velocity structure functions.Acta Mechanica Sinica,30(4),480-484. |
| MLA | Dong YF,et al."A multifractal model for linking Lagrangian and Eulerian velocity structure functions".Acta Mechanica Sinica 30.4(2014):480-484. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。