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  • A bed-load transport model for rough turbulent open-channel flows on plane beds
  • Carrying capacity ; Model ; Sediment transport ; Shear stress ; Stream ; Stream flow ; Turbulence
  • Data from flume studies are used to develop a model for predicting bed-load transport rates in rough turbulent two-dimensional open-channel flows moving well sorted non-cohesive sediments over plane mobile beds. The object is not to predict
  • transport rates in natural channel flows but rather to provide a standard against which measured bed-load transport rates influenced by factors such as bed forms, bed armouring, or limited sediment availability may be compared in order to assess the impact
  • Effect of saltating sediment on flow resistance and bred roughness in overland flow
  • This study has evaluated the effect of saltating sediment on flow resistance and bed roughness in overland flow on a fixed sand-covered bed. It is concluded that saltating sediment has a considerable impact on overland flow hydraulics, at least
  • on fixed granular beds. Saltation is likely to have a relatively smaller effect on overland flow on natural hillslopes and agricultural fields where form and wave resistance dominate.
  • A sediment transport equation for interrill overland flow on rough surfaces
  • Carrying capacity ; Experimentation ; Mathematical model ; Model ; Overland flow ; Rill wash ; Roughness ; Sediment transport ; Slope ; Soil erosion
  • A model for predicting the sediment transport capacity of turbulent interrill flow on rough surfaces is developed from 1295 flume experiments. The transport model is likely to apply to a wide range of ground surface morphologies. Using dimensional
  • analysis, a total-load transport equation is developed for open-channel flows, and this equation is shown to apply to interrill flows both with and without rainfall. Discussion of the results.
  • Relation of sediment transport capacity to stone cover and size in rain-impacted interrill flow
  • This study examines how the sediment transport capacity of interrill overland flow varies with stone cover and stone size at 2 flow intensities. 6 series of flume experiments were conducted on 2 slopes with stones of 3 sizes serving as roughness
  • elements. Water discharge, rainfall intensity and sediment size are held constant, and stone size, stone cover and slope are varied. Slope is varied as a means of altering flow intensity without changing discharge.
  • Hydraulics of interrill overland flow on stone-covered desert surfaces
  • The hydraulics of composite overland flow around surface stones are extremely complex and have been little studied. The purpose of this paper is to review both field and laboratory research on this subject and to discuss briefly the implications
  • Predicting sediment transport by interrill overland flow on rough surfaces
  • Modelling soil erosion requires an equation for predicting the sediment transport capacity by interrill overland flow on rough surfaces. This study therefore explores the possibility that inasmuch as surface roughness affects flow hydraulic
  • or indirectly through bed roughness, exert almost as much influence on flow velocity as does discharge. Three alternative methods ar developed for predicting flow velocity in the rills under study and give good results with the largest root mean square deviation.