Author(s): Yonggang Zhang; Ping Wang; Zi Wu
Linked Author(s):
Keywords: Emergent canopy; Nonuniform flow; Backwater rise; Turbulent kinetic energy
Abstract: Vegetation is widely used to restore waterways and wetland ecosystems. Dense canopies create a nonuniform water surface, and predicting the backwater rise is necessary to evaluate the flood hazard. In emergent canopies, turbulence is produced in the wake regions of individual vegetation elements. The magnitude of turbulence generated by vegetation elements is set by the canopy density and the length scale of turbulence. This paper investigates the water surface elevation from downstream to upstream of an emergent canopy in a streamwise nonuniform flow and predicts the longitudinal turbulent kinetic energy (TKE).
Year: 2025