Bed load transport in steep boulder bed channels

Creators: 
Yager, Elowyn
 
Contact: 
Name: 
Sediment Experimentalist
contributor_email: 
 

We designed a set of flume experiments with a simple, well-defined bed configuration to test our modified sediment transport equation. The experiments were conducted in a small (15 cm wide, 4.5 m long) flume set at a gradient of ten percent. This is the steepest gradient at which fluvial processes have been hypothesized to dominate over debris flow scour and deposition. At this gradient, the influence of the immobile grains on the flow and sediment transport will be relatively large. Thus our experiments should provide a test of sediment transport equations at the limit of their applicability. We maintained a constant slope in our experiments to enable comparisons between all experimental runs. The flume bed consisted of two layers of 30 mm immobile spheres: a closely packed bottom layer (λ/D of 1) and a top layer in which λ/D varied from 1 to 5 in the different runs. (Yager et al., 2007)

 
 
Date Last Updated: 
Monday, November 3, 2014
 
 
Image: 
yager
 
Language: 
English
 
Rights management: 
CC-BY
 
Coverage: 
Dates Collected: 
Monday, November 3, 2014
 
Resource Type: 
dataset
 
Degree of processing: 
2: derived
 
 
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