Abstract
The paper discusses preliminary results of a CFD study on the structural response of a Sloping Top Breakwater subject to wave overtopping. The analysis showed that the transmitted wave field act to increase both the landward and the seaward forces and that the conventional design methods may be not adequate to guarantee an appropriate degree of safety to the structure. The study also confirmed the previous finding by Walkden et al. (2001), which noticed the existence of strong impulsive loadings on the inner face of the wall, due to violent overtopping events.References
Allsop, N.W.H., J.E. McKenna, D.Vicinanza, and T.T.J. Whittaker. 1997. New design methods for wave
impact loadings on vertical breakwaters and seawalls, Proceedings of the 25th International
Conference on Coastal Engineering, 2, pp. 2508-2521.
Buccino, M.; Vicinanza, D.; Stagonas, D. 2015a. Development of a composite seawall wave energy
conversion system. Renew. Energy 2015, 81, 509-522.
Buccino, M., Vicinanza, D., Dalerno, D., Banfi, D., Calabrese, M. 2015b. Nature and magnitude of wave
loadings at Sea-wave Slotcone Generators†. Ocean Engineering. 95, 34-58.
Buccino, M., Dentale, F., Salerno, D., Contestabile, P., Calabrese, M., 2016. the use of CFD in the
analysis of wave loadings acting on seawave slot-cone generators. Sustainability, 2016, 8, 1255.
Calabrese, M., Buccino, M., Pasanisi, F., 2008. Wave breaking macrofeatures on a submerged rubble
mound breakwater. Journal of Hydro-Environment Research, 1 (3-4), 216-225.
Cooker, M.J., Peregrine, D.H., 1995. Pressure-impulse theory for liquid impact problems. J. Fluid
Mechanics, 297, 193-214.
Dentale, F., Donnarumma, G., Pugliese Carratelli, E., 2014a. Simulation of flow within armour blocks
in a breakwater. J. Coast. Res. 2014, 30, 528-536.
Dentale, F., Donnarumma, G., Pugliese Carratelli, E., 2014b. Numerical wave interaction with Tetrapods
breakwater. J. Naval Arch. Ocean Eng. 2014, 6, 800-812.
Flow Science Inc., 2009. Suite Flow 3D. Flow Science Inc.: Santa Fe, Mexico.
Goda, Y., 1995. Japan's design practice in assessing wave forces on vertical breakwaters,Wave forces on
inclined and vertical wall structures. ASCE p. 402.
Peregrine, D.H., 2003. Water-wave impact on walls. Ann. Rev. Fluid Mech. 35, 23-44.
EurOtop. (2007). European manual for the assessment of wave overtopping, T. Pullen, N. W. H. Allsop,
T. Bruce, A. Kortenhaus, H. Schuttrumpf, and J. W. Van der Meer, eds., HR Wallingford,
Wallingford, U.K.
Takahashi, S. Hosoyamada, S. Yamamoto, S., 1994. Hydrodynamic characteristics of sloping top
caissons. In Proceedings of International Conference on HydroTechnical Engineering for Port and
Harbor Construction, 1. Port and Harbour; Research Institute: Tokyo, Japan, 1994; pp. 733-746.
Vicinanza, D., 1997. (In Italian). Ph.D. thesis). Pressioni e forze di impatto di onde frangenti su dighe a
paramento verticale e composite.
Vicinanza, D., Dentale, F., Salerno, D., Buccino, M., 2015. Structural response of Seawave Slot-Cone
Generator (SSG) from Random Wave CFD simulations. Proceedings of the International Offshore
and Polar Engineering Conference (ISOPE 2015). 2015-January, pp. 985-991.
Walkden, M., Wood, D., Bruce, T., and Peregrine, D. (2001) Impulsive seaward loads induced by wave
overtopping on caisson breakwaters. Coastal Engineering, 42, 257-276.
Zelt, J.A., Skjelbreia, J.E, 1992. Estimating incident and reflected wave field using an arbitrary number
of wavegauges. In Proceedings of the International Conference on Coastal Engineering, Venice,
Italy, 4-9 October 1992; pp. 777-789.