Statistical Simulation of Decaying and Forced Homogeneous Isotropic Turbulence

被引：3
|
作者：
Fei, Fei [1 ]
Fan, Jing
Xu, Chunxiao
Song, Yang
Liu, Zhaohui [1 ]
机构：
[1] Huazhong Univ Sci & Technol, State Key Lab Coal Combust, Wuhan 430074, Peoples R China
来源：
PROCEEDINGS OF THE 29TH INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS | 2014年 / 1628卷
关键词：
D-IP method; isotropic turbulence; relative dispersion; RAREFIED-GAS FLOWS; INFORMATION PRESERVATION METHOD; MOLECULAR-DIFFUSION; MODEL; SIZE;
D O I：
10.1063/1.4902749
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The diffusive information preservation (D-IP) method, a molecule-based scheme, has been extended to simulate decaying and forced homogeneous isotropic turbulence, and validated by comparing with the corresponding DNS results. Furthermore, the Lagrangian statistics of relative dispersion in homogeneous isotropic turbulence calculated directly by D-IP show that molecular motion significantly affect the relative dispersion when the initial separations of molecular pairs are less than the Kolmogorov microscale.
引用
收藏
页码：1356 / 1362
页数：7
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