Depth-resolved modelling of suspended sediment in the surf and swash zones

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Abstract

We present a depth-resolving model that is capable of resolving the vertical flow and suspended sediment structures in the surf and in the swash zones. The model uses the RANS equations to simulate hydrodynamics, and includes sediment transport using an advection diffusion approach. The model is first validated hydrodynamically using measured surface elevations. The results from the model show a strong vertical dependence in the suspended sediment flux, and that at certain cross-shore locations the wave-averaged sediment transport moves onshore where the average flow velocity is offshore-directed. These physical processes are important to consider when designing more practical, long-term depth-averaged models for simulating coastal morphodynamics.
Original languageEnglish
Title of host publicationProceedings 39th IAHR World Congress, 19-24 June 2022, Granada, Spain
EditorsMiguel Ortega-Sánchez
Place of PublicationGranada
PublisherIAHR
Number of pages6
ISBN (Electronic)2521-716X
ISBN (Print)978-90-832612-1-8
Publication statusPublished - 2022
Event39th IAHR World Congress 2022: From snow to sea - Granada, Spain
Duration: 19 Jun 202224 Jun 2022
Conference number: 39

Conference

Conference39th IAHR World Congress 2022
Country/TerritorySpain
CityGranada
Period19/06/2224/06/22

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