Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Chinese Journal of Atmospheric Sciences》 1993-01
Add to Favorite Get Latest Update

A Random Walk Diffusion Model in the Convective Boundary Layer

Li Zongkai(Department of Atmospheric Sciences, Nanjing University, Nanjing 210008)Du Shuming(Nanjing Institute of Meteorology, Nanjing 210044)  
After analysing the structure of turbulence in convective boundary layer (CBL), it is first suggested that the vertical diffusion in CBL can be simulated by turbulence on two different scales, and then a simple random walk diffusion model for CBL is developed. Two cases of elevated continuous point sources in a typical convective condition are simulated in comparison with the Willis and Deardorff water tank modelling, Lamb's numerical simulation, and CONDORS field experiments. We are confident that the model can successfully simulate the cross-wind integrated concentration distribution in CBL, and that our model has advantages of using less input parameters, much short computation time and is more suitable for practical uses.
【Fund】: 国家自然科学基金
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【References】
Chinese Journal Full-text Database 2 Hits
1 Zhu Zhongzhan; Li Zongkai(Department of atmospheric science,Nanjing University,Nanjing, 210008);A DOUBLE GAUSSIANS PDF MODEL ON DISPERSION IN CONVECTIVE BOUNDARY LAYERS[J];ACTA METEOROLOGICA SINICA;1995-01
2 HAN Long-xi1,2,3,CHEN Li-na3 (1.State Key Laboratory of Hydrology-Water Resource and Hydraulic Engineering, Nanjing 210098,China;2.Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes,MOE,Nanjing 210098,China;3.College of Environmental Science and Engineering,Hohai University,Nanjing 210098,China);Revised random walk model for degradable water pollutant[J];Advances in Water Science;2009-05
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 LI Xiang-mei~1, WANG Han-qing~2, LI Xiang-yang~3, ZHOU Xing-hou~3(1 School of Urban Construction, Nanhua University, Hengyang 421001, Hunan, China; 2 School of Civil Engineering, Hunan Institute of Technology, Zhuzhou 412008, Hunan, China; 3 School of Nucleus Technology and Security, Nanhua University, Hengyang 421001, Hunan,China);On radioactive pollution forecast in soil of crop-fields near a uranium mine exhaust outlet[J];Journal of Safety and Environment;2007-01
2 MA Xiaoming 2) WANG Donghai 3) YI Zhibin 2) YIN Yanpeng 3) ( 2) Department of Environmental Science, Peking University, Beijing, 100871; 3) Jinan Environment Protection Bureau, Jinan, 250012);Calculational and Distributive Method of Urban Total Permitted Air Pollutant Emission[J];Acta Scientiarum Naturalium Universitatis Pekinensis;2006-02
3 MA Xiaoming\ LI Shigang\ LUAN Shenji\ YE Wenhu (Center for Environmental Sciences,Peking University,Beijing,100871);Studies on Urban Total Air Pollutant Emission Control Planning in China[J];ACTA SCICENTIARUM NATURALUM UNIVERSITIS PEKINESIS;1999-02
4 Peng Xi\ \ Wu Xiaoyan (National Key Laboratory for the Prevention and Control of Explosion, Beijing Institute of Technology, Beijing100081)Wu Zhangzhi Zhang Boyin (Turbulence National Key Laboratory, Peking University, Beijing100871);Concentration Quantifying of the Smoke Plume Modeled in a Towing Water Tunnel[J];JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY;1999-01
5 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
6 Xu Dahai Zhu Rong ( Chinese Academy of Meteorological Sciences );APPLICATION OF A-P VALUE METHOD FOR CONTROL OF TOTAL QUANTITY EMISSION OF URBAN ATMOSPHERIC POLLUTION IN GB/T 3840-91[J];Urban Environment & Urban Ecology;1993-02
7 HE Ke_bin,YU Xue_chun,LU Yong_qi,HAO Ji_ming,FU Li_xin (Department of Environmental Science & Engineering, Tshinghua University, Beijing 100084, China);Characterization of Urban Air Pollution Sources[J];Urban Environment & Urban Ecology;2003-06
8 JI Kui 1 YANG Jianhua 2 YANG Zhiqiang 2 (1 Tongji University,1239 Siping Road, Shanghai 200092, China; 2 College of Geological Engineering and Geomatics,Chang’an University ,126 South Yanta Road, Xi’an 710054, China);RANDOM PRODUCING METHOD BASED ON WINDOWS TIME FUNCTION[J];Wtusm Bulletin of Science and Technology;2004-02
9 Zhou Suping;Zhao Yue;Sun Shuyao(Heilongjiang Institute of Environmental protection,Haerbin 150056);STUDY ON ATMOSPHERIC POLLUTION FORECASTING[J];CHONGQING ENVIRONMENTAL SCIENCE;1995-05
10 Du Minmin(Nantong Institute of Environmental Science, Nantong 226006);COMPUTATIONAL METHOD OF ATMOSPHERIC ENVIRONMENTAL CAPACITY BY USING TANK MODES AND GAOSI MODES[J];CHONGQING ENVIRONMENTAL SCIENCE;1995-06
【Secondary References】
Chinese Journal Full-text Database 1 Hits
1 ZHANG Hong-yu,ZHANG ZHi-sheng, WANG Nai-yan, LIU SHun-min (Nanjing University of Science and Technology , Institution of Chemistry ,Nanjing 210094,China);Comparison of Smoke Atmospheric Dispersion between Gauss Model and Random Walk Model[J];Electro-optics & Passive Countermeasures;2004-06
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved