| Author(s): |
Bridget Wadzuk, E. Burke |
| Year of Publication: |
2007 |
| Publisher: |
American Society of Civil Engineers - Reston, VA |
| ISBN: |
9780784409275 View in Library Catalog
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| Proceedings Title: |
Restoring our natural habitat proceedings of the 2007 World Environmental and Water Resources Congress
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| Conference Location: |
Tampa, Florida
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| Conference Dates: |
May 15-19, 2007
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| Abstract: |
The dynamics of diffusion in laminar flow constructed stormwater wetlands are presently not fully understood. A field experiment conducted at Villanova University in 2006 compared field diffusion coefficients with those of the laboratory experiments of Nepf et al. (1997) and Serra et al. (2004); all of these studies examined the effect of plant density on diffusion coefficients. The field conditions at Villanova included several additional factors that were not present in the laboratory experiments: non-uniform flow, plant debris and additional bed shear stress. The results of this study show that these field factors significantly affect the diffusion coefficients and that a new model is needed to predict the diffusion coefficients in field conditions.
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