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A new formula for the total longshore sediment transport rate

Bayram, Atilla; Larson, Magnus LU and Hanson, Hans LU (2007) In Coastal Engineering 54(9). p.700-710
Abstract
A new predictive formula for the total longshore sediment transport (LST) rate was developed from principles of sediment transport physics assuming that breaking waves mobilize the sediment, which is subsequently moved by a mean current. Six high-quality data sets on hydrodynamics and sediment transport collected during both field and laboratory conditions were employed to evaluate the predictive capability of the new formula. The main parameter of the formula (a transport coefficient), which represents the efficiency of the waves in keeping sand grains in suspension, was expressed through a Dean number based on dimensional analysis. The new formula yields predictions that lie within a factor of 0.5 to 2 of the measured values for 62% of... (More)
A new predictive formula for the total longshore sediment transport (LST) rate was developed from principles of sediment transport physics assuming that breaking waves mobilize the sediment, which is subsequently moved by a mean current. Six high-quality data sets on hydrodynamics and sediment transport collected during both field and laboratory conditions were employed to evaluate the predictive capability of the new formula. The main parameter of the formula (a transport coefficient), which represents the efficiency of the waves in keeping sand grains in suspension, was expressed through a Dean number based on dimensional analysis. The new formula yields predictions that lie within a factor of 0.5 to 2 of the measured values for 62% of the data points, which is higher than other commonly employed formulas for the LST rate such as the CERC equation or the formulas developed by Inman-Bagnold and Kamphuis, respectively. The new formula is well suited for practical applications in coastal areas, as well as for numerical modeling of sediment transport and shoreline change in the nearshore. (c) 2007 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
surf zone, longshore sediment transport, field data, breaking waves, predictive equation, engineering application, laboratory data
in
Coastal Engineering
volume
54
issue
9
pages
700 - 710
publisher
Elsevier
external identifiers
  • wos:000249865400005
  • scopus:34548010764
ISSN
0378-3839
DOI
10.1016/j.coastaleng.2007.04.001
language
English
LU publication?
yes
id
63253e99-e344-44a2-9f3e-fc1794707e00 (old id 656177)
date added to LUP
2007-12-05 10:11:54
date last changed
2017-11-12 03:52:03
@article{63253e99-e344-44a2-9f3e-fc1794707e00,
  abstract     = {A new predictive formula for the total longshore sediment transport (LST) rate was developed from principles of sediment transport physics assuming that breaking waves mobilize the sediment, which is subsequently moved by a mean current. Six high-quality data sets on hydrodynamics and sediment transport collected during both field and laboratory conditions were employed to evaluate the predictive capability of the new formula. The main parameter of the formula (a transport coefficient), which represents the efficiency of the waves in keeping sand grains in suspension, was expressed through a Dean number based on dimensional analysis. The new formula yields predictions that lie within a factor of 0.5 to 2 of the measured values for 62% of the data points, which is higher than other commonly employed formulas for the LST rate such as the CERC equation or the formulas developed by Inman-Bagnold and Kamphuis, respectively. The new formula is well suited for practical applications in coastal areas, as well as for numerical modeling of sediment transport and shoreline change in the nearshore. (c) 2007 Elsevier B.V. All rights reserved.},
  author       = {Bayram, Atilla and Larson, Magnus and Hanson, Hans},
  issn         = {0378-3839},
  keyword      = {surf zone,longshore sediment transport,field data,breaking waves,predictive equation,engineering application,laboratory data},
  language     = {eng},
  number       = {9},
  pages        = {700--710},
  publisher    = {Elsevier},
  series       = {Coastal Engineering},
  title        = {A new formula for the total longshore sediment transport rate},
  url          = {http://dx.doi.org/10.1016/j.coastaleng.2007.04.001},
  volume       = {54},
  year         = {2007},
}