Large-Eddy Simulation of the Wind Field and Plume Dispersion Within Different Obstacle Arrays Using a Dynamic Mixing Length Subgrid-Scale Model
Gu, ZL (Gu, Zhao Lin)[1,2]; Jiao, JY (Jiao, Jian Ying)[3]; Su, JW (Su, Jun Wei)[3]
2011-06-30
发表期刊BOUNDARY-LAYER METEOROLOGY
卷号139期号:3页码:439-455
文章类型期刊论文
摘要

A novel dynamic mixing length (DML) subgrid-scale (SGS) model is proposed to improve the large-eddy simulations of the wind field and contaminant dispersion around a group of buildings. Wind field and contaminant dispersion in two kinds of building array geometries are simulated using the model, with wind-tunnel experimental data used to validate the model. The relative errors in the lateral profiles of the streamwise mean velocities behind the sixth row of the buildings of the staggered obstacle array and the aligned obstacle array at the half height of the building are 15 and 9%, respectively. The DML velocity fluctuations in the staggered and aligned obstacle arrays are in agreement with those of the experiment. The results indicate that the DML model can make a more accurate prediction of the mean velocity and velocity fluctuations. The DML model is highly suitable for the simulation of multi-scale turbulent flow in urban canyons, of high Reynolds number turbulent flow and of complex turbulent flow.

关键词Contaminant dispersion Large-eddy simulation Mixing length Subgrid-scale model Wind tunnel
DOI10.1007/s10546-010-9587-8
收录类别SCI
语种英语
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10290
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Gu, ZL (Gu, Zhao Lin)[1,2]
作者单位1.School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China;
2.SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China;
3.School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
推荐引用方式
GB/T 7714
Gu, ZL ,Jiao, JY ,Su, JW . Large-Eddy Simulation of the Wind Field and Plume Dispersion Within Different Obstacle Arrays Using a Dynamic Mixing Length Subgrid-Scale Model[J]. BOUNDARY-LAYER METEOROLOGY,2011,139(3):439-455.
APA Gu, ZL ,Jiao, JY ,&Su, JW .(2011).Large-Eddy Simulation of the Wind Field and Plume Dispersion Within Different Obstacle Arrays Using a Dynamic Mixing Length Subgrid-Scale Model.BOUNDARY-LAYER METEOROLOGY,139(3),439-455.
MLA Gu, ZL ,et al."Large-Eddy Simulation of the Wind Field and Plume Dispersion Within Different Obstacle Arrays Using a Dynamic Mixing Length Subgrid-Scale Model".BOUNDARY-LAYER METEOROLOGY 139.3(2011):439-455.
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