| Author(s): |
Bridget Wadzuk, E. Burke |
| Year of Publication: |
2006 |
| Publisher: |
Drexel University - Philadelphia, PA |
| Proceedings Title: |
Proceedings of the 7th International Conference on Hydroscience and Engineering
|
| Conference Location: |
Bossone Center, Drexel University
|
| Conference Dates: |
September 10-13, 2006
|
| 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.
|
