A general formula for noncohesive suspended sediment transport
(2008) In Journal of Coastal Research 24(3). p.615-627- Abstract
- A simple and robust suspended load transport formula for noncohesive sediment is presented for application to river, estuarine, and coastal environments with the use of depth-averaged models. The formula is based on an exponential profile for the concentration and assumes a constant velocity over depth to simplify the calculations. These assumptions were validated with a large data set, including data with a steady current, wave and current interaction, and breaking waves. The formula has two parameters: the mean sediment diffusivity over depth and the bottom reference concentration. The sediment diffusivity is estimated assuming a linear combination of mixing because of breaking waves and the energy dissipation in the bottom boundary... (More)
- A simple and robust suspended load transport formula for noncohesive sediment is presented for application to river, estuarine, and coastal environments with the use of depth-averaged models. The formula is based on an exponential profile for the concentration and assumes a constant velocity over depth to simplify the calculations. These assumptions were validated with a large data set, including data with a steady current, wave and current interaction, and breaking waves. The formula has two parameters: the mean sediment diffusivity over depth and the bottom reference concentration. The sediment diffusivity is estimated assuming a linear combination of mixing because of breaking waves and the energy dissipation in the bottom boundary layer from the mean current, waves, or both. The bottom reference concentration is a function of the Shields parameter. Overall, the formula developed in this study yields the best agreement with the compiled data set compared with a number of existing formulas for estimating the suspended load. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1202032
- author
- Camenen, Benoit LU and Larson, Magnus LU
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- waves, breaking waves, noncohesive, sediment, current, diffusion parameter, reference concentration, profile, suspended load, concentration
- in
- Journal of Coastal Research
- volume
- 24
- issue
- 3
- pages
- 615 - 627
- publisher
- Coastal Education and Research Foundation
- external identifiers
-
- wos:000256120800007
- scopus:44649141847
- ISSN
- 0749-0208
- DOI
- 10.2112/06-0694.1
- language
- English
- LU publication?
- yes
- id
- c41e33fd-1d85-47bc-9aca-b11f50a9c5a6 (old id 1202032)
- date added to LUP
- 2016-04-01 13:08:59
- date last changed
- 2022-02-19 03:12:50
@article{c41e33fd-1d85-47bc-9aca-b11f50a9c5a6,
abstract = {{A simple and robust suspended load transport formula for noncohesive sediment is presented for application to river, estuarine, and coastal environments with the use of depth-averaged models. The formula is based on an exponential profile for the concentration and assumes a constant velocity over depth to simplify the calculations. These assumptions were validated with a large data set, including data with a steady current, wave and current interaction, and breaking waves. The formula has two parameters: the mean sediment diffusivity over depth and the bottom reference concentration. The sediment diffusivity is estimated assuming a linear combination of mixing because of breaking waves and the energy dissipation in the bottom boundary layer from the mean current, waves, or both. The bottom reference concentration is a function of the Shields parameter. Overall, the formula developed in this study yields the best agreement with the compiled data set compared with a number of existing formulas for estimating the suspended load.}},
author = {{Camenen, Benoit and Larson, Magnus}},
issn = {{0749-0208}},
keywords = {{waves; breaking waves; noncohesive; sediment; current; diffusion parameter; reference concentration; profile; suspended load; concentration}},
language = {{eng}},
number = {{3}},
pages = {{615--627}},
publisher = {{Coastal Education and Research Foundation}},
series = {{Journal of Coastal Research}},
title = {{A general formula for noncohesive suspended sediment transport}},
url = {{http://dx.doi.org/10.2112/06-0694.1}},
doi = {{10.2112/06-0694.1}},
volume = {{24}},
year = {{2008}},
}