A Lagrangian stochastic model for estimating the high order statistics of a fluctuating plume in the neutral boundary layer

被引：0

作者：

Marro, Massimo ^{[1
]}

Nironi, Chiara ^{[1
]}

Salizzoni, Pietro ^{[1
]}

Soulhac, Lionel ^{[1
]}

机构：

[1] Univ Lyon 1, CNRS, Ecole Cent Lyon, Lab Mech Fluides & Acoust, F-69134 Ecully, France

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION | 2014年 / 54卷 / 2-4期

关键词：

atmospheric turbulence; concentration fluctuations; Lagrangian stochastic modelling; turbulent mixing; COMPARING; 2; IMPLEMENTATIONS; PDF MICROMIXING MODEL; HOMOGENEOUS TURBULENCE; ATMOSPHERIC FLOW; PART II; DISPERSION; TRAJECTORIES;

D O I：

10.1504/IJEP.2014.065124

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We use a Lagrangian stochastic micromixing model to predict the concentration fluctuations of a continuous release in a neutral boundary layer. We present the computational algorithm that implements the interaction by exchange with the conditional mean model and we compare the numerical solutions with the experimental values in order to evaluate the reliability of the model. The influence of the source size on the concentration probability density function in the near and far-field is discussed and some shortcomings of the model are pointed out.

引用

页码：233 / 241

页数：9

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