Hydraulic Characteristics of Emerged Rigid and Submerged Flexible Vegetations in the Riparian Zone

Flow resistance, velocity distribution, and turbulence intensity are significantly influenced by aquatic vegetations (AV) in riparian zones. Understanding the hydraulics of flow with planted floodplains is great significance for determining distribution profile supporting fluvial processes management. However, traditional flume experiment method inefficient. Therefore, multigroup simultaneous test was carried out to describe patterns affected emerged rigid (reed wooden stick) submerged flexible (grass chlorella). The Acoustic Doppler Velocimeter (ADV) utilized measure at one point different experimental conditions. results showed that hydraulic features were types vegetation. Furthermore, relative depth (z/h) a factor those variations. In addition, time-averaged distributions not logarithmic. Instead, they represented “s-shape” profiles. detail, vegetated floodplains, reed wood followed an s-shape profile, but grass chlorella, reverse profile. For all cases, isotropic change law sections. intensities, Reynold stresses vegetation also analyzed.