Lateral erosion in an experimental bedrock channel: The influence of bed roughness on erosion by bed load impacts

Relative role of bed roughness, bed erosion and channel storage on peak discharge increase in hyperconcentrated floods

Experimental study of bedrock erosion by granular flows*

[1] Field studies suggest that bedrock incision by granular flows may be the primary process cutting valleys in steep, unglaciated landscapes. An expression has been proposed for debris flow incision into bedrock which posits that erosion rate depends on stresses due to granular interactions at the snout of debris flows. Here, we explore this idea by conducting laboratory experiments to test th...

Erosion of a granular bed driven by laminar fluid flow

Motivated by examples of erosive incision of channels in sand, we investigate the motion of individual grains in a granular bed driven by a laminar fluid to give us new insights into the relationship between hydrodynamic stress and surface granular flow. A closed cell of rectangular cross-section is partially filled with glass beads and a constant fluid flux Q flows through the cell. The refrac...

Onset of erosion of a granular bed in a channel driven by fluid flow

Articles you may be interested in Erosion threshold of a liquid immersed granular bed by an impinging plane liquid jet A comparison of the predictions of a simple kinetic theory with experimental and numerical results for a vibrated granular bed consisting of nearly elastic particles of two sizes Onset of erosion and avalanche for an inclined granular bed sheared by a continuous laminar flow We...

Roles of Aquatic Plants on Erosion Relief of Stream Bed

Roles of the vegetation to mitigate the erosion of the stream bed or to facilitate the deposition of the fine sediments by the species of the aquatic plants were presented. Field investigation on the estimation of the change of the bed level and the estimation of the flow characteristics were performed. The results showed that Phragmites japonica has the mitigation function of 0.3m-0.4m of the ...