Non-Hydrostatic Modelling of Coastal Flooding in Port Environments

Non-Hydrostatic Modelling of Coastal Flooding in Port Environments

Suzuki, T. (TU Delft Environmental Fluid Mechanics; Flanders Hydraulics Research)
Altomare, Corrado (Universitat Politecnica de Catalunya)
Willems, Marc (Flanders Hydraulics Research)
Dan, Sebastian (Flanders Hydraulics Research)

2023

Understanding key flooding processes such as wave overtopping and overflow (i.e., water flows over a structure when the crest level of the structure is lower than the water level in front) is crucial for coastal management and coastal safety assessment. In port and harbour environments, waves are not only perpendicular to the coastal structure but also very oblique, with wavefronts almost perpendicular to the main infrastructures in the harbour docks. Propagation and wave–structure interaction of such perpendicular and (very) oblique waves need to be appropriately modelled to estimate wave overtopping properly. Overflow can also be critical for estimating flooding behind any coastal defence. In this study, such oblique and parallel waves (i.e., main wave direction is parallel to the structures) are modelled in a non-hydrostatic wave model and validated with physical model tests in the literature. On top, overflow is also modelled and validated using an existing empirical formula. The model gives convincing behaviours on the wave overtopping and overflow.

non-hydrostatic model
numerical modelling
oblique waves
overflow
port
SWASH
wave overtopping

http://resolver.tudelft.nl/uuid:79f6f0ef-debb-4318-a94e-c46e77d48783

https://doi.org/10.3390/jmse11030575

2077-1312

Journal of Marine Science and Engineering, 11 (3)

Institutional Repository

journal article

© 2023 T. Suzuki, Corrado Altomare, Marc Willems, Sebastian Dan