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Adjustable shear stress erosion and transport flume

Patent ·
OSTI ID:874938
 [1];  [1]
  1. Carlsbad, NM
+ Show Author Affiliations

A method and apparatus for measuring the total erosion rate and downstream transport of suspended and bedload sediments using an adjustable shear stress erosion and transport (ASSET) flume with a variable-depth sediment core sample. Water is forced past a variable-depth sediment core sample in a closed channel, eroding sediments, and introducing suspended and bedload sediments into the flow stream. The core sample is continuously pushed into the flow stream, while keeping the surface level with the bottom of the channel. Eroded bedload sediments are transported downstream and then gravitationally separated from the flow stream into one or more quiescent traps. The captured bedload sediments (particles and aggregates) are weighed and compared to the total mass of sediment eroded, and also to the concentration of sediments suspended in the flow stream.

Research Organization:
SANDIA CORP
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
US 6494084
OSTI ID:
874938
Country of Publication:
United States
Language:
English

References (6)

Effects of Bulk Density on Sediment Erosion Rates book January 1997
Effects of Gas Generation on the Density and Erosion of Sediments from the Grand River journal January 2000
Measurements of Erosion of Undisturbed Bottom Sediments with Depth journal June 1996
Sediment Transport, Part I: Bed Load Transport journal October 1984
Effects of Particle Size and Bulk Density on Erosion of Quartz Particles journal December 1998
Measurements of Bedload and Suspended Load in Cohesive and Non-Cohesive Sediments conference April 2012

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Related Subjects

/73/
adjustable
aggregates
apparatus
asset
bedload
bottom
captured
channel
closed
compared
concentration
continuously
core
core sample
downstream
eroded
eroding
erosion
flow
flume
forced
gravitationally
introducing
keeping
level
mass
measuring
method
particles
past
pushed
quiescent
rate
sample
sediment
sediments
separated
shear
shear stress
stream
stress
surface
suspended
total
transport
transported
traps
variable-depth
water
weighed