Environmental dispersivity in free-water-surface-effect dominated wetland:multi-scale analysis  

作　　者：Zi WU Zhi LI Li ZENG Ling SHAO Hansong TANG Qing YANG Guoqian CHEN 

机构地区：[1]State Key Laboratory of Turbulence and Complex Systems,College of Engineering,Peking University,Beijing 100871,China [2]Department of Civil Engineering,City University of New York City College,New York,NY 10031,USA

出　　处：《Frontiers of Environmental Science & Engineering》2011年第4期597-603,共7页环境科学与工程前沿（英文）

基　　金：This work is supported by the National Natural Science Foundation Program of China(Grant No.10972009).Help from Simon Skraatz is acknowledged.

摘　　要：Distinct from the case with width-dominated shallow wetland flows,the longitudinal evolution of contaminant concentration in the most-typical pattern of wetland as dominated by free-water-surface-effect is characterized by a multi-scale analysis in the present study.An environmental dispersion model for the evolution of the mean concentration is deduced as an extension of Taylor's classical formulation by Mei’s multi-scale analysis.Corresponding environmental dispersivity is found identical to that determined by the method of concentration moments.

关 键 词：free-surface wetland environmental dispersion multi-scale analysis 

分 类 号：O35[理学—流体力学]