Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Environmental Science & Technology》 2010-09
Add to Favorite Get Latest Update

Numerical Simulation of Contaminant Distribution at Urban Traffic Cross

CHEN Yi-sheng,CUI Xiao-chao,PANG Yun-ji (School of Environment and Energy,Inner Mongolia University of Science and Technology,Baotou014010,China)  
k-ε two equation model which describes turbulent movement was used to simulate and calculate the flow field and concentration field distribution in effect of two different kinds of wind direction at the crossroad in a city with road as line pollutants source. In program I,airflow will form obvious vortexes behind the building when airflow circle around a building and pollutants will easily get together. High concentration zone is located where outside between two buildings and up to 2.9440μg/m3. In program II,airflow will not form obvious vortexes because of relation between buildings location and wind direction. Wind speed that is located about buildings rear leeward and between buildings underside is lower,so where is favor to form high concentration zone. High concentration zone is located where underside between two buildings and up to 2.6402μg/m3. The program II is obviously favorable for pervasion of pollutants. When wind into buildings at the direction of slant,the effect of turbulence is decreased and effect of transference is increased,which is favorable to pervasion of pollutants. The exterior windward shape of buildings near patrol will improve the effect of wind to pollutants pervasion and upgrade quality of atmospheric environment around the buildings.
【Fund】: 国家自然科学基金项目资助(50564001)
【CateGory Index】: X830
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【Citations】
Chinese Journal Full-text Database 5 Hits
1 LIU Changwei1,CHEN Yisheng2,HU Yinzhi2(1.Department of Scientific Research,UIST Baotou,Baotou 014010,China;2.Institute of Metallurgical Engineering,UIST Baotou,Baotou 014010,China);The mathematical model study of polluting fountain diffusion concentration in air pollution[J];Journal of Baotou University of Iron and Steel Technology;2002-04
2 CHEN Yi-sheng, PANG Yun-ji, YAN Yong-wang (School of Energy and Environment,Inner Mongolia University of Science and Technology,Baotou 014010,China);Numerical Simulation for Atmospheric Flow Filed and Pollutant Concentration Field in Different Spaces between Buildings[J];Environmental Science & Technology;2009-02
3 DENG Shun xi 1,LI Bai chuan 2,CHEN Ai xia 1 (1 School of Environmental Engineering, Chang′an University, Xi′an 710064, China; 2 School of Automobile, Chang′an University, Xi′an 710064, China);A Methodology for the Determination of Emission Rates from Vehicular Pollutants on Highway in China[J];Journal of Traffic and Transportation Engineering;2001-04
4 Zhang Ning 1,Jiang Wei-mei 1,Wang Xiao-yun 2 (1. Department of Atmospheric Science, Nanjing University, Nanjing 210093,China ;2.Beijing Meteorology,Bureau Beijing 100089,China);A numerical simulation of the effects of urban blocks and buildings on flow characteristics[J];Acta Aerodynamica Sinica;2002-03
5 Miao Shiguang 1,2 Jiang Weimei 1 Hu Fei 3 Chen Xianyan 2 Ji Chongping 2 (1 Department of Atmospheric Sciences,Nanjing University,Nanjing 210093) (2 Beijing Meteorological Bureau,Beijing 100089) (3 LAPC,Instute of Atmosphoric Physics,Beijng 100029);NUMERICAL SIMULATION OF THE IMPACT ON METEOROLOGY AND POLLUTANT DIFFUSION OF URBAN AREA BY BUILDING DISTRIBUTION[J];Scientia Meteorologica Sinica;2004-02
【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 ZHANG Yin 1, HE You duo 1, LI Shi qi 2, SHEN Yi shen 2 (1 Institute of Metallurgical Engineering, UIST Baotou, Baotou 014010, China; 2 School of Metallurgical Engineering,UST Beijing,Beijing 100083,China);Calculation for 2 D unsteady flow field[J];JOURNAL OF BAOTOU UNIVERSITY OF IRON AND STEEL TECHNOLOGY;1999-02
2 LIU Ping,YUAN Lin-wang,SHENG Ye-hua,BAI Shi-biao,XU Su-wei(Jiangsu Provincial Key Lab of GIS,Nanjing Normal University,Nanjing 210097);Simulation of Continuous Point-source Puff Dispersion[J];Environmental Science & Technology;2006-03
3 LI Shu-wen, SHI Jian-wu, ZHOU Ji-hong(School of Urban Construction, Hebei University of Engineering, Handan 056038);Establishment and Application of Model on Near-ground Atmospheric Pollution[J];Environmental Science & Technology;2007-02
4 SU Guo,*CHEN Shui-fu(Department of Civil Engineering,Zhejiang University,Hangzhou,Zhejiang 310027,China);NUMERICAL SIMULATION OF WIND PRESSURES AND WIND ENVIRONMENT AROUND A COMPLEX-SHAPED HIGH-RISE BUILDING[J];Engineering Mechanics;2006-08
5 Deng Shunxi,Dong Xiaoling (Environ. Eng. Division,Xi'an Highway University,Xi'an 710064,China E mail:Dengsx@ihw.com.cn);Study on Emission Factors of CO,HCs and NO_x from Mountainous Roadway in China[J];Chinese Journal of Enviromental Science;2000-01
6 MIAO Shiguang 1, JIANG Weimei 1, WANG Xiaoyun 2, ZHANG Ning 1, JI Chongping 2, LI Ju 2 (1 Department of Atmospheric Sciences, Nanjing University, Nanjing 210093; 2 Beijing Meteorological Bureau, Beijing 100089);Numerical simulation of meteorology and pollutant diffusion in urban sub-domain[J];Acta Scientiae Circumstantiae;2002-04
7 (Department of Atmospheric Sciences, Nanjing University, Nanjing\ 210093);Numerical simulation of flow fleld and dispersion in wake region of building[J];ACTA SCIENTIAE CIRCUMSTANTIAE;1999-01
8 LI Ling1, KIMURA Shigeo2 (1.Department of Hydraulic Engineering,Tsinghua University,Beijing 100084,China2.Institute of Nature and Environmental Technology,Kanazawa University Kanazawa 920-8667,Japan);Numerical modeling of atmospheric flow and dispersion around a mountain[J];Chinese Journal of Computational Mechanics;2007-04
9 Zhang Ning 1,Jiang Wei-mei 1,Wang Xiao-yun 2 (1. Department of Atmospheric Science, Nanjing University, Nanjing 210093,China ;2.Beijing Meteorology,Bureau Beijing 100089,China);A numerical simulation of the effects of urban blocks and buildings on flow characteristics[J];Acta Aerodynamica Sinica;2002-03
10 Wang Weiguo Xu Min Jiang Weimei (Department of Atmospheric Sciences,Nanjing University,Nanjing 210093);The Simulation Experiment on the Flow Feature and Turbulence Dispersion near Building[J];ACTA AERODYNAMICA SINICA;1999-01
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved