Thin layer structure of dissipation rate of scalar turbulence

被引：0
|
作者：
Haibing Zhou
Guixiang Cui
Chunxiao Xu
Zhaoshun Zhang
机构：
[1] Tsinghua University,Department of Engineering Mechanics
来源：
Science in China Series E: Technological Sciences | 2003年 / 46卷 / 2期
关键词：
scalar turbulence; direct numerical simulation; turbulence structure;
D O I：
10.1360/03ye9023
中图分类号：
学科分类号：
摘要：
The structure of scalar turbulence dissipation is studied by means of direct numerical simulation. It has been discovered that the scalar turbulence dissipation exhibits thin layer structure. Based on the analysis of transportation equation of scalar turbulence dissipation, we have investigated the effect of turbulent strains on the generation of scalar turbulence dissipation and found that fluctuating scalar gradients trend to the third principal direction of turbulent strains. Therefore the generation of the thin layer structure of scalar turbulence dissipation is well interpreted.
引用
收藏
页码：209 / 217
页数：8
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