A Lagrangian stochastic model for turbulent dispersion

被引：0
|
作者：
Changhoon Lee
Byunggu Kim
Namhyun Kim
机构：
[1] Hongik University,Department of Applied Mathematics
[2] Yonsei University,Division of Mechanical Engineering, School of Electrical and Mechanical Engineering
来源：
KSME International Journal | 2001年 / 15卷
关键词：
Lagrangian Stochastic Model; Brownian Motion; Turbulent Dispersion;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A Lagrangian stochastic model is adopted for the calculations of turbulent dispersion in turbulent channel flows. Dispersion of a fluid particle and relative dispersion between two particles released at the same location are investigated and compared with the classical scaling relations for homogeneous turbulence. The viscous effect is realized by adding a Browinian random walk to the calculation of the position of a particle. The near-wall accumulation of particles is examined.
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页码：1683 / 1690
页数：7
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