Including tidal currents in a wave-resolving model

Title

Including tidal currents in a wave-resolving model

 Author

de Wit, F.P. (TU Delft Environmental Fluid Mechanics) ORCID 0000-0002-7285-3833
Tissier, M.F.S. (TU Delft Environmental Fluid Mechanics) ORCID 0000-0002-8163-2151
Reniers, A.J.H.M. (TU Delft Environmental Fluid Mechanics) ORCID 0000-0001-8732-6748

 Contributor

Aagaard, T. (editor)
Deigaard, R. (editor)
Fuhrman, D. (editor)

Date

2017

 Abstract

Coastal systems are influenced by a combination of waves and tides. In certain cases, tide-induced alongshore currents can be of similar order or even larger than wave-induced currents. Until now, however, no detailed wave-resolving modelling studies included tidal currents. This paper presents a method to implement alongshore tidal currents by adding a pressure term to the alongshore momentum balance and includes modifications to the numerical wave maker to allow for both waves and currents to be generated. The method is successfully validated by comparing simulations with and without inclusion of the tidal current to measurements obtained from the COAST3D data set. Wave prediction is equally good with and without the tidal implementation, but the alongshore current and its distribution over the cross-shore are much better predicted by the model with the new method.

 Subject

hydrodynamics
alongshore current
tidal current
numerical modelling
wave-resolving model
SWASH

 To reference this document use:

http://resolver.tudelft.nl/uuid:b10bd890-22ff-419e-996e-181da3712ae0

 Source

Proceedings of Coastal Dynamics 2017: Helsingør, Denmark

 Event

Coastal Dynamics 2017, 2017-06-12 → 2017-06-16, Kulturværftet, Helsingor, Denmark

 Part of collection

Institutional Repository

 Document type

conference paper

 Rights

© 2017 F.P. de Wit, M.F.S. Tissier, A.J.H.M. Reniers
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