The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

A new formula for the total longshore sediment transport rate

På svenska

Author

Summary, in English

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.

Publishing year

2007

Language

English

Pages

700-710

Publication/Series

Coastal Engineering

Volume

54

Issue

9

Document type

Journal article

Publisher

Elsevier

Topic

  • Water Engineering

Keywords

  • surf zone
  • longshore sediment transport
  • field data
  • breaking waves
  • predictive equation
  • engineering application
  • laboratory data

Status

Published

ISBN/ISSN/Other

  • ISSN: 0378-3839