Chapter
Apr 26, 2012
Drag and Diffusivity Within Emergent Vegetation
Authors: H. M. Nepf and E. R. VivoniAuthor Affiliations
Publication: Engineering Approaches to Ecosystem Restoration
Abstract
Aquatic plants convert mean kinetic energy into turbulent kinetic energy at the scale of the plant. This energy transfer, linked to stem-wake generation, affects both the vegetative drag and the plant-induced turbulent diffusivity. Drawing on this phenomenological link we develop a model which couples these flow parameters. Experimental observations are presented which support the link between canopy diffusivity and canopy drag. The study extends previous models of vegetative resistance by incorporating the dependence of drag coefficient on population density.
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Published In
Engineering Approaches to Ecosystem Restoration
Pages: 54 - 59
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© 1998 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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H. M. Nepf
Dept. Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
E. R. Vivoni
Dept. Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.