Dispersion in stable boundary layers using large-eddy simulation

被引：12
|
作者：
Kemp, JR
Thomson, DJ
机构：
来源：
ATMOSPHERIC ENVIRONMENT | 1996年 / 30卷 / 16期
关键词：
large-eddy simulation; dispersion; diffusion; stable boundary layer;
D O I：
10.1016/1352-2310(95)00485-8
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Large-eddy simulation has been used to investigate dispersion under slight and moderate stability conditions. Numerically calculated flow trajectories have been used to follow the paths of a large number of particles released into the turbulent domain in order to study the dispersion properties. The vertical spread from the large-eddy simulations and from a model based on the ideas of Pearson et al. (1983, J. Fluid Mech. 120, 219-249) shows different qualitative behaviour although they agree quantitatively within a factor of 2. Possible reasons for the qualitative disagreement are discussed. In the horizontal plane, results show a bending of the plume which is produced by the turning of the wind with height in stable conditions. Copyright (C) Controller, Her Majesty's Stationery Office, Norwich, England, 1996 Published by Elsevier Science Ltd
引用
收藏
页码：2911 / 2923
页数：13
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