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Title: Adjustable shear stress erosion and transport flume

Abstract

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.

Inventors:
 [1];  [1]
  1. Carlsbad, NM
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
874938
Patent Number(s):
6494084
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G01 - MEASURING G01C - MEASURING DISTANCES, LEVELS OR BEARINGS
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
adjustable; shear; stress; erosion; transport; flume; method; apparatus; measuring; total; rate; downstream; suspended; bedload; sediments; asset; variable-depth; sediment; core; sample; water; forced; past; closed; channel; eroding; introducing; flow; stream; continuously; pushed; keeping; surface; level; bottom; eroded; transported; gravitationally; separated; quiescent; traps; captured; particles; aggregates; weighed; compared; mass; concentration; core sample; shear stress; /73/

Citation Formats

Roberts, Jesse D, and Jepsen, Richard A. Adjustable shear stress erosion and transport flume. United States: N. p., 2002. Web.
Roberts, Jesse D, & Jepsen, Richard A. Adjustable shear stress erosion and transport flume. United States.
Roberts, Jesse D, and Jepsen, Richard A. Tue . "Adjustable shear stress erosion and transport flume". United States. https://www.osti.gov/servlets/purl/874938.
@article{osti_874938,
title = {Adjustable shear stress erosion and transport flume},
author = {Roberts, Jesse D and Jepsen, Richard A},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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Works referenced in this record:

Effects of Gas Generation on the Density and Erosion of Sediments from the Grand River
journal, January 2000


Effects of Bulk Density on Sediment Erosion Rates
book, January 1997


Measurements of Bedload and Suspended Load in Cohesive and Non-Cohesive Sediments
conference, April 2012


Sediment Transport, Part I: Bed Load Transport
journal, October 1984


Measurements of Erosion of Undisturbed Bottom Sediments with Depth
journal, June 1996


Effects of Particle Size and Bulk Density on Erosion of Quartz Particles
journal, December 1998