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Environmental dispersivity in free-water-surface-effect dominated wetland: multi-scale analysis |
Zi WU1, Zhi LI1, Li ZENG1, Ling SHAO1, Hansong TANG2, Qing YANG1, Guoqian CHEN1( ) |
| 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 |
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Abstract 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.
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| Keywords
free-surface wetland
environmental dispersion
multi-scale analysis
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Corresponding Author(s):
CHEN Guoqian,Email:gqchen@pku.edu.cn
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Issue Date: 05 December 2011
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