A Lagrangian stochastic model for turbulent dispersion

Changhoon Lee; Byunggu Kim; Namhyun Kim

doi:10.1007/BF03185123

A Lagrangian stochastic model for turbulent dispersion

Changhoon Lee, Byunggu Kim, Namhyun Kim

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	1683-1690
Number of pages	8
Journal	KSME International Journal
Volume	15
Issue number	12
DOIs	https://doi.org/10.1007/BF03185123
Publication status	Published - 2001 Dec

All Science Journal Classification (ASJC) codes

Mechanical Engineering

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10.1007/BF03185123

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title = "A Lagrangian stochastic model for turbulent dispersion",

abstract = "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.",

keywords = "Brown: An motion, Lagrangian stochastic model, Turbulent dispersion",

author = "Changhoon Lee and Byunggu Kim and Namhyun Kim",

year = "2001",

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AU - Lee, Changhoon

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AU - Kim, Namhyun

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N2 - 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.

AB - 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.

KW - Brown: An motion

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KW - Turbulent dispersion

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A Lagrangian stochastic model for turbulent dispersion

Abstract

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