Gravel-bed rivers
Flow Resistance in Gravel Bed Rivers
... for gravel bed rivers. Such rivers are characterized by coarse bed materials, steeps slopes, and low ...in gravel bed ...
5
Determining hydraulic resistance in gravel-bed rivers from the dynamics of their water surfaces
... water-worked bed. Initially when the bed was flat, the distributions were highly positively skewed, with a low proportion of smaller ...the bed surface became more water-worked the distributions ...
10
Long-profile evolution of transport-limited gravel-bed rivers
... of gravel transport and fluvial mor- phodynamics to describe how channel long profiles ...for gravel-bed rivers differ when we assume a channel with a self-formed equilibrium width ...
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Introducing PebbleCounts: a grain-sizing tool for photo surveys of dynamic gravel-bed rivers
... of gravel-bed ...high-mountain rivers, necessitate different approaches for photo ...mountain rivers collected with a camera-on-mast setup (akin to a low-flying ...
19
Quantifying river-groundwater interactions of New Zealand's gravel-bed rivers: The Wairau Plain
... Figure 4: Wairau Plain surface water - groundwater flow model... The corresponding Wairau River discharge at SH1 is shown in the top panel and 95% uncertainty bounds are shaded gray..[r] ...
65
Bedload transport in braided gravel-bed rivers : a hydraulic model study
... A 1 :50 scale hydraulic model was designed based on Froude Number similarity using hydrological and sediment data from a braided gravel-bed river (the North Branch of the Ashburton Ri[r] ...
198
Numerical Modelling of Braiding Processes in Gravel-Bed Rivers
... Physical!models,!also!termed!as!hardware!models,!typically!take!the!form!of!flume6 based!experiments!that!seek!to!represent!a!scaled!model!of!a!given!natural!prototype.!! Scaling! relationships! are! typically! based! ...
354
Evaluation of Bed Load in a Gravel-Bed River
... equation (2013) is based on data obtained over sand-gravel bed rivers. There is a good agreement between Recking's equation and Babolroud river data . Also, Duboy’s equation (1879) was developed ...
10
The spatial organisation of time-averaged streamwise velocity and its correlation with the surface topography of water-worked gravel beds
... of bed production chosen for this study was based on the concept developed to form beds in laboratory flumes to study downstream fining (Paola et ...inject gravel into the flow at twice its transport ...
30
Resistance In Gravel Bed Channel In Highway
... in gravel bed rivers when used with no ...for bed load transport calculations at flow conditions with intermediate- and large-scale roughness in natural gravel, cobble, and boulder ...
11
Geometry of meandering and braided gravel-bed threads from the Bayanbulak Grassland, Tianshan, P. R. China
... Abstract. The Bayanbulak Grassland, Tianshan, P. R. China, is located in an intramontane sedimentary basin where meandering and braided gravel-bed rivers coexist under the same climatic and ...
11
Topographical change caused by moderate and small floods in a gravel bed ephemeral river – a depth-averaged morphodynamic simulation approach
... ephemeral gravel bed rivers (Reid et ...observed gravel bed river’s bedload ...ephemeral gravel bed rivers, as Reid et ...
23
The influence of migrating bed forms on the velocity-intermittency structure of turbulent flow over a gravel bed.
... in gravel-bed rivers and, as a con- sequence, one expects that flow patterns are more complex than classical flow patterns, such as a well-developed bound- ary layer [Shvidchenko and Pender, 2001; Roy ...
6
Modelling fine sediment transport over an immobile gravel bed
... over gravel beds can degrade the natural habitat of benthic organisms and therefore their ecological functions, as well as limit oxygen availability to spawning sites for several fish species through excessive ...
142
Exploring accuracy of statistical characterization of gravel beds using Kinect device in the laboratory scale
... river bed roughness characterization to make hydraulic and sediment transport models in order to predict and model the river valleys by numerical modelling methods ...the gravel bed rivers and ...
15
Numerical modelling of gravel-bed river morphodynamics
... Alluvial gravel-bed rivers are typically found in mountain and piedmont areas, characterized by values of the longitudinal slope that are in- termediate between those of steep mountain streams and of ...
251
Evaluation and Improvement of Bed Load Formula Using Tapi River Data, India
... developed bed load equation as a function of sediment transport in the open channel flow, Bathurst et ...proposed bed load discharge equations for steep mountain gravel bed rivers, ...
6
Planform Change and Bedload Transport in Braiding Rivers
... braided rivers at low flow would provide a cheaper alternative to traditional photogrammetry and produce outputs of similar ...the bed is exposed, allowing DEMs to be obtained of these ...
157
Treatment of Domestic Wastewater Using Geotextile as a Filter Media
... The domestic wastewater was initially treated with chemical coagulants such as Alum and ferric chloride (Fecl3). The best coagulant (Fecl3) among the two and the optimum dosage required for the treatment purpose was ...
6
Influence of relative submergence on spatial variance and form-induced stress of gravel-bed flows
... example, gravel-bed flows comprise turbulent coherent flow structures, such as low- speed wall streaks ...rough gravel sub- strates displaying logarithmic, linear, accelerating, and s- shaped profiles ...
13