Drag and diffusivity within emergent vegetation

H. M. Nepf, Enrique Vivoni

Research output: Chapter in Book/Report/Conference proceedingConference contribution


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.

Original languageEnglish (US)
Title of host publicationProceedings of the ASCE Wetlands Engineering River Restoration Conference
Place of PublicationFairfield, NJ, United States
StatePublished - 1998
Externally publishedYes
EventProceedings of the 1998 ASCE Wetlands Engineering River Restoration Conference - Denver, CO, USA
Duration: Mar 22 1998Mar 27 1998


OtherProceedings of the 1998 ASCE Wetlands Engineering River Restoration Conference
CityDenver, CO, USA

ASJC Scopus subject areas

  • Engineering(all)


Dive into the research topics of 'Drag and diffusivity within emergent vegetation'. Together they form a unique fingerprint.

Cite this