Abstract: Using a large set of field and laboratory data, this study investigated the effect of slope and the Shields parameter on the friction factor. It identified the ranges of critical shear stress and bed slope for which Froude ...

Abstract: This study investigated the sediment entrainment and critical shear stress in gravel-bed rivers. Measured rates of bed load transport were used to estimate the Shields stress parameter. The computed parameters were compared ...

Abstract: Using laboratory experiments and a numerical model, this study examined the influence of dune dimensions on the separation of flow. Different conditions, depending on the dune height, material, and angle and flow depth and ...