Nonlinear wave forces exerted on a vertical breakwater, due to short-crested (3D) wave groups, when an exceptionally high wave crest occurs, are investigated. The analytical investigations are based on a closed form solution for the reflection of short-crested wave groups, whose derivation is shown in the paper. It is obtained that the effects of non-linearity strongly affect the linear processes of both wave pressures and wave forces. In particular, a very important result is the occurrence of double positive peaks in the wave force process. Beneath the highest wave crest a local minimum of the wave force is observed with the formation of two maxima for each wave crest impact.

Three-dimensional Nonlinear Wave Groups interacting with an Upright Breakwater

ROMOLO, Alessandra;ARENA F
2009-01-01

Abstract

Nonlinear wave forces exerted on a vertical breakwater, due to short-crested (3D) wave groups, when an exceptionally high wave crest occurs, are investigated. The analytical investigations are based on a closed form solution for the reflection of short-crested wave groups, whose derivation is shown in the paper. It is obtained that the effects of non-linearity strongly affect the linear processes of both wave pressures and wave forces. In particular, a very important result is the occurrence of double positive peaks in the wave force process. Beneath the highest wave crest a local minimum of the wave force is observed with the formation of two maxima for each wave crest impact.
2009
978-981-4277-36-5
Reflection; Nonlinear waves; Standing wave groups
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12318/17047
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