Effect of Bed Forms and Vegetated Banks on Velocity Distributions and Turbulent Flow Structure

Abstract

On the basis of laboratory experiments, this paper investigates the effect of different bed forms and vegetated banks on flow velocity, Reynolds stresses, and turbulence intensities. Experimental measurements were made over fifth and sixth dunes in a series of seven of two-dimensional (2D) asymmetric gravel dunes that had lee-slope angles of 28° and 35°, respectively. These dunes had a mean wavelength of 0.96 m, mean dune height of 0.08 m, and width equal to the flume width. Rice stems with a median diameter of 2.7 mm and a stem distribution density of