THE INFLUENCE OF SUBMERGED COASTAL STRUCTURES ON NEARSHORE HYDRODYNAMICS

Renan F. da Silva; Jeff Hansen; Ryan Lowe; Dirk Rijnsdorp; Mark Buckley

doi:10.9753/icce.v37.waves.18

Núm. 37 (2022), Waves

Núm. 37 (2022)

THE INFLUENCE OF SUBMERGED COASTAL STRUCTURES ON NEARSHORE HYDRODYNAMICS

Waves

Publicado 2023-09-01

Renan F. da Silva
Jeff Hansen
Ryan Lowe
Dirk Rijnsdorp
Mark Buckley

Renan F. da Silva

Jeff Hansen

Ryan Lowe

Dirk Rijnsdorp

Mark Buckley

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THE INFLUENCE OF SUBMERGED COASTAL STRUCTURES ON NEARSHORE HYDRODYNAMICS. (2023). Coastal Engineering Proceedings, 37, waves.18. https://doi.org/10.9753/icce.v37.waves.18

Resumen

Submerged coastal structures (e.g., submerged breakwaters and natural and artificial reefs) are common in nearshore waters globally. By locally reducing water depths from the surrounding bathymetry, they modify the incident wave field, mean currents, runup and sediment transport around them. Although submerged structures are generally assumed to promote coastal protection by dissipating waves offshore and creating sheltered conditions in their lee, their interaction with waves can result in wave-driven circulation patterns that may either promote shoreline accretion or erosion (Ranasinghe et al., 2006). A meta-analysis of the coastal changes resulting from the construction of submerged breakwaters found that, contrary to expectation, in the majority of the cases erosion occurred in their lee (Ranasinghe and Turner, 2006). Therefore, a detailed understanding of the wave structure interactions and resulting hydrodynamics is paramount to predict coastal changes in their lee. Here we explore the detailed wave-driven hydrodynamics in the lee of submerged structures using phase-resolved modelling.

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Referencias

Ranasinghe, R., Turner, I.L. (2006). Shoreline response to submerged structures: A review. Coastal Engineering vol. 53, pp. 65–79.

Ranasinghe, R., Turner, I. L., and Symonds, G. (2006): Shoreline response to multi-functional artificial surfing reefs: A numerical and physical modelling study, Coastal Engineering, vol. 53, pp. 589–611.

Zilema, M., G. Stelling, and P. Smit (2011): SWASH: An operational public domain code for simulating wave fields and rapidly varied flows in coastal waters, Coastal Engineering, vol. 58, pp. 992–1012.

Esta obra está bajo una licencia internacional Creative Commons Atribución 4.0.

Derechos de autor 2023 Renan F. da Silva, Jeff Hansen, Ryan Lowe, Dirk Rijnsdorp, Mark Buckley

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THE INFLUENCE OF SUBMERGED COASTAL STRUCTURES ON NEARSHORE HYDRODYNAMICS

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