Author(s): Remi Chassagne; Julia C. Mullarney
Linked Author(s):
Keywords: Canopy flows; Sediment transport; Turbulence modelling
Abstract: In vegetated areas, water flow and sediment transport are highly influenced by their interaction with the vegetation. The induced vegetation drag force reduces the water flow velocity but increases the turbulent kinetic energy (TKE). Recent laboratory experiments of flow in an array of rigid cylinders have shown that the fluid bed shear stress, and consequently the sediment transport rate, are correlated with the TKE rather than the depth average velocity. In this context, modeling sediment transport in vegetated areas represents a major challenge for the prediction of the geomorphic evolution of coastlines.
Year: 2024