Wave transmission of Fixed Bottom-detached Breakwaters in Numerical Wave Flume Zihan Liu University of Florence, Italy Andrea Esposito AM3 Spin-off s.r.l., Italy Lorenzo Cappietti University of Florence, Italy This is a section of Tenth InternationaSymposium Monitoring of Mediterranean Coastal Areas: Problems and Measurement Techniques(DOI: 10.36253/979-12-215-0556-6) by Laura Bonora, Marcantonio Catelani, Matteo De Vincenzi, Giorgio Matteucci Firenze University Press Florence 2024 https://doi.org/10.36253/979-12-215-0556-6.78

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This work presents preliminary numerical simulation results on wave interaction with a fixed Bottom-Detached Breakwater (BDB). The purpose of developing fixed BDB is to provide a safe offshore zone for human activities, such as energy production and docking of large vessels, even in extreme weather. The transmission coefficient (kt) is used to assess the protection performance of the BDB. A two-dimensional Numerical Wave Flume (NWF) was developed by using ANSYS Fluent, validated with existing data and then used for studying the interaction between extreme waves and the BDB. The role of BDB design parameters such as its width and draft, and wave height and wavelength on kt was investigated. The reliability of the results of kt was verified by previous experimental study. This study demonstrates the development of a reliable NWF for conducting parametric analysis of BDBs and is a kick-off study for further developing the numerical and experimental study of floating breakwaters.

 Wave-structure interaction; transmission coefficient; bottom-detached breakwater (BDB); numerical wave flume; computational fluid dynamics

It is available online at https://doi.org/10.36253/979-12-215-0556-6.78

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