Author(s): Z. Shi; J. M. R. Hughes
Linked Author(s):
Keywords: Quatic plants; Open-channel; Turbulent structure; Flume
Abstract: The microflow environments of aquatic plants with reference to Myrophyllum and Hydrilla are simulated in the flume. The following hydrodynamic parameters are used in characterizing the flow regimes: local shear velocity (), roughness length (), canopy roughness Reynolds number (), bed shear stress (), and laminar sublayer (). Of 38 measured mean velocity profiles, 76% of profiles fitted a logarithmic relationship (: 0.5-0.9). Each mean velocity profile consists of three hydrodynamic regimes (i.e., within-canopy zone, above-canopy zone and a transional zone between them), which indicate the presence of two boundary layers (internal and external ones).
Year: 2001