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  4. Hysteresis Effects in Splash Sediment Transport
 
conference paper

Hysteresis Effects in Splash Sediment Transport

Cheraghi, Mohsen  
•
Jomaa, Seifeddine  
•
Sander, Graham
Show more
Sobota, Jerzy
•
Van Rhee, Cees
2015
17th International Conference of Transport & Sedimentation of Solid Particles
17th International Conference of Transport & Sedimentation of Solid Particles

Temporally variable rainfall was applied on an initially dry, ploughed and smoothed agricultural soil to investigate the hysteresis pattern in the sediment concentration- discharge relation using laboratory flume experiments. The erosion flume had dimensions of 5-m × 2-m and consisted of two collectors at either side of the outlet. The slope was fixed at 2% and seven sequential events involved 20-min precipitation rates of 15, 30, 45, 60, 45, 30 and 15 mm h -1, were performed. Due to the cohesive agricultural soil, and low discharge and slope, rainfall detachment was the only erosion mechanism operating. The data collected at the two flume exits were analyzed by measuring the discharge and total sediment concentration. A clockwise hysteresis loop was found for total sediment concentration because of the easily erodible soil condition at the beginning of the experiment. It was also found that the Hairsine-Rose model was in agreement with the experimental data, which showed its capability to predict the characteristics of hysteretic sediment transport arising in time varying rainfall events.

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Type
conference paper
Author(s)
Cheraghi, Mohsen  
Jomaa, Seifeddine  
Sander, Graham
Barry, David Andrew  
Editors
Sobota, Jerzy
•
Van Rhee, Cees
Date Issued

2015

Publisher

Wroclaw University of Environmental and Life Sciences

Publisher place

Wroclaw

Published in
17th International Conference of Transport & Sedimentation of Solid Particles
ISBN of the book

978-83-927084-8-3

Start page

45

End page

52

Subjects

Hysteresis effects

•

Sediment transport

•

Flume experiment

•

Splash soil erosion

•

Hairsine and Rose model

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
ECOL  
Event nameEvent placeEvent date
17th International Conference of Transport & Sedimentation of Solid Particles

Delft, The Netherlands

September 22-25, 2015

Available on Infoscience
January 14, 2016
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/122244
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