✦ LIBER ✦

Multi-scale analysis for environmental dispersion in wetland flow

✍ Scribed by Zi Wu; Z. Li; G.Q. Chen

Publisher: Elsevier Science
Year: 2011
Tongue: English
Weight: 444 KB
Volume: 16
Category: Article
ISSN: 1007-5704
DOI: 10.1016/j.cnsns.2010.12.002

No coin nor oath required. For personal study only.

✦ Synopsis

Presented in this work is a multi-scale analysis for longitudinal evolution of contaminant concentration in a fully developed flow through a shallow wetland channel. An environmental dispersion model for the mean concentration is devised as an extension of Taylor's classical formulation by a multi-scale analysis. Corresponding environmental dispersivity is found identical to that determined by the method of concentration moments. For typical contaminant constituents of chemical oxygen demand, biochemical oxygen demand, total phosphorus, total nitrogen and heavy metal, the evolution of contaminant cloud is illustrated with the critical length and duration of the contaminant cloud with constituent concentration beyond some given environmental standard level.

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