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Modelling Belgian Coast: ScaldisCoast: sub report 2. Updates ScaldisCoast 2025 Wang, L.; Kolokythas, G.; Breugem, W.A.; De Maerschalck, B. (2026). Modelling Belgian Coast: ScaldisCoast: sub report 2. Updates ScaldisCoast 2025. Version 4.0. FH reports, 21_104_2. Flanders Hydraulics: Antwerp. VII, 35 + 7 p. app. pp. Deel van: FH reports. Flanders Hydraulics: Antwerp. , meer

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Beschikbaar in	Auteurs
Waterbouwkundig Laboratorium: Open Repository 420323 [ OWA ]
Documenttype: Projectrapport

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Trefwoorden

Hydraulics and sediment > Hydrodynamics > Tides Hydraulics and sediment > Hydrodynamics > Waves Hydraulics and sediment > Sediment > Sediment transport Numerical modelling

Author keywords

Coastal modelling

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Project	Top | Auteurs
Beheer bestek WL_2021_23 - Morfologisch onderzoek Kust, Scheldemonding en Westerschelde: Scaldis-Kust, meer

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Auteurs		Top
Wang, L. Kolokythas, G. Breugem, W.A. De Maerschalck, B., meer

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Abstract

This report documents the latest release of the ScaldisCoast numerical model, developed to simulate both long- and short-term morphological evolution along the Belgian coast under varying hydrodynamic and meteorological conditions. Key developments include the transition from the SISYPHE to the GAIA sediment transport module and the upgrade of the TELEMAC modelling system to version v8p4. In addition to ensuring consistency across modules and versions, particular attention was given to the adoption of the Flather formulation as the default wind drag formulation in the new version of TELEMAC system, which significantly improved hydrodynamic accuracy during the Ciara Storm event. The wave model TOMAWAC was also updated with an optimized numerical scheme, resulting in a 35% reduction in computation time and improved numerical stability. Comprehensive validation of the morphological model was carried out using historical data and recent measurements from representative locations, including Zeebrugge, Wenduine, and Blankenberge. The model demonstrated satisfactory agreement with both long-term morphological trends and short-term storminduced sediment dynamics. These results confirm the ScaldisCoast model as a robust and efficient tool for operational and strategic applications, supporting coastal defense planning, sediment management, and climate adaptation along the Belgian coast.

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