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大气科学  2006 

建筑物对大气污染物扩散影响的大涡模拟

DOI: 10.3878/j.issn.1006-9895.2006.02.04

Keywords: 大涡模拟,建筑物,城市环境,大气污染物扩散,气流特征

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Abstract:

利用一个大涡模式对一个方形建筑物周围的气流场进行了模拟,并与相应的风洞实验结果进行比较,对比结果表明大涡模拟方法可以精细地反映建筑物周围的流场特征.在此基础上,将拉格朗日随机游动扩散模式与大涡模式相结合,对在受建筑物影响的气流场中的大气污染物扩散进行模拟,模拟结果表明该方法可以很好地模拟出在建筑物影响下的气流变形所引起的各种污染物散布情况.建筑物周围的气流结构特性使得建筑物顶部污染源位置的细小变化可能造成建筑物周围污染物分布形势的很大不同,特别是对建筑物背风侧的空腔区内地面污染物浓度有着很大的影响.当排放

References

[1]  Landsberg H.Problems of desing for cities in the tropics.WMO,1982
[2]  Hostker R.Flow around isolated structure and building clusters:a review.ASHRAE Transcations,1985,91:1671~1692
[3]  Baik J,Kim J.A numerical study of flow and pollutant dispersion characteristics in urban street canyons.Journal of Applied Meteorology,1999,38:1576~1589
[4]  Ashie Y,Ca W,Acaeda T.Buildings canopy model for the analysis of urban climate.Journal of Wind Engineering and Industrial Aerodynamics,1999,81:237~248
[5]  蒋维楣,苗世光,刘红年,等.城市街区污染散布的数值模拟与风洞实验的比较分析.环境科学学报,2003,23:652~656Jiang Weimei,Miao Shiguang,Liu Hongnian,et al.Comparison and analysis pollution modeling a city sub-domain scale model with tunnel experiment.Acta Scientiae Circumstantiae (in Chinese),2003,23:652~656
[6]  王宝民,刘辉志,桑建国,等.大风条件下城市冠层流场模拟.大气科学,2003,27:255~264Wang Baomin,Liu Huizhi,Sang Jianguo,et al.Simulation of flow field in an urban canopy layer during the strong wind.Chinese Journal of Atmospheric Sciences (in Chinese),2003,27:255~264
[7]  苗世光,蒋维楣,胡非,等.建筑物分布对市区流场及污染物扩散影响的数值模拟.气象科学,2004,24:137~144Miao Shiguang,Jiang Weimei,Hu Fei,et al.Numerical simulation of the impact on meteorology and pollutant diffusion of urban area by building distribution.Scientia Meteorologica Sinica (in Chinese),2004,24:137~144
[8]  桑建国,刘辉志,王保民,等.街谷环流和热力结构的数值模拟.应用气象学报,2004,13:69~81Sang Jianguo,Liu Huizhi,Wang Baomin,et al.Numerical simulation of the flow field and thermal structure over a street canyon.Journal of Applied Meteorological Science (in Chinese),2004,13:69~81
[9]  Zhang Ning,Jiang Weimei,Hu Fei.Numerical method study of how buildings affect the flow characteristics of an urban canopy.Wind and Structure,2004,7:159~172
[10]  Murakami S.Examing the K-ε model by means of a wind tunnel test and large eddy simualtion of the turbulence structure around a cube.Journal of Wind Engineering and Industrial Aerodynamics,1994,35:87~100
[11]  蔡旭晖,陈家宜.水平非均匀对流边界层热量平衡和平流输送作用的大涡模拟.大气科学,2000,24:95~102Cai Xuhui,Chen Jiayi.Large-eddy simulations of heat budget and advection effects in heterogeneons convective boundary layers.Chinese Journal of Atmospheric Sciences (in Chinese),2000,24:95~102
[12]  蒋维楣,苗世光.大涡模拟与大气边界层研究--30年回顾与展望.自然科学进展,2004,14:11~19Jiang Weimei,Miao Shiguang.Large eddy simulation and atmospheric boundary layer research-review of recent 30years and prospect.Advance in Natural Science (in Chinese),2004,14:11~19
[13]  Tutar M,Oguzu G.Large eddy simulation of wind flow around parallel buildings with varying configuration.Fluid Dynamics Research,2002,31:289~315
[14]  Mathiasw R.Simulation of urban-scale dispersion using a Lagrangian stochastic dispersion model.Boundary Layer Meteorology,2001,99:379~410
[15]  Kurbanmura O,Sabelfeld K.Lagrangian stochastic models for turbulent dispersion in the atmospheric boundary layer.Boundary Layer Meteorology,2002,97:191~218
[16]  Deardorff J.Stratocumulus-capped mixed layers derived from a three-dimensional model.Boundary-Layer Meteorology,1980,18:495~527
[17]  徐敏,王卫国,蒋维楣.建筑物尾流区与污染物扩散的数值模拟.环境科学学报,1999,19:52~56Xu Min,Wang Weiguo,Jiang Weimei.Numerical simulation of flow fleld and dispersion in wake region of building.Acta Scientiae Circumstantiae (in Chinese),1999,19:52~56
[18]  王卫国,徐敏,蒋维楣.建筑物附近气流特征及湍流扩散的模拟试验.空气动力学学报,1999,17:87~92Wang Weiguo,Xu Min,Jiang Weimei.The simulation experiment on the flow feature and turbulence dispersion near building.Acta Aerodynamica Sinica (in Chinese),1999,17:87~92
[19]  http://www.mi.uni-hamburg.de
[20]  张宁.建筑物对城市微尺度气象环境影响的大涡模拟.南京大学博士学位论文,2004Zhang Ning.Large eddy simulation on the buildings effect on urban micro-scale meteorological environment.Ph.D.dissertation (in Chinese),Nanjing University,2004
[21]  Launder B,Spalding D.The numerical computation of turbulent flows.Computer Methods in Applied Mechanics and Engineering,1974,3:269~289

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