Interaction between wave and coastal structure: validation of two lagrangian numerical models with experimental results
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Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/333139
Tipus de documentText en actes de congrés
Data publicació2011
EditorCIMNE
Condicions d'accésAccés obert
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Abstract
Numerical modeling of the interaction among waves and coastal structures is a
challenge due to the many nonlinear phenomena involved, such as, wave propagation, wave
transformation with water depth, interaction among incident and reflected waves, run-up /
run-down and wave overtopping. Numerical models based on Lagrangian formulation, like
SPH (Smoothed Particle Hydrodynamics), allow simulating complex free surface flows. The
validation of these numerical models is essential, but comparing numerical results with
experimental data is not an easy task. In the present paper, two SPH numerical models,
SPHysicsLNEC and SPHUNESP, are validated comparing the numerical results of waves
interacting with a vertical breakwater, with data obtained in physical model tests made in one
of the LNEC’s flume. To achieve this validation, the experimental set-up is determined to be
compatible with the Characteristics of the numerical models. Therefore, the flume dimensions
are exactly the same for numerical and physical model and incident wave characteristics are
identical, which allows determining the accuracy of the numerical models, particularly
regarding two complex phenomena: wave-breaking and impact loads on the breakwater. It is
shown that partial renormalization, i.e. renormalization applied only for particles near the
structure, seems to be a promising compromise and an original method that allows
simultaneously propagating waves, without diffusion, and modeling accurately the pressure
field near the structure.
CitacióDidier, E. [et al.]. Interaction between wave and coastal structure: validation of two lagrangian numerical models with experimental results. A: . CIMNE, 2011, p. 134-145.
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Marine-2011-09_INTERACTION BETWEEN WAVE.pdf | 676,1Kb | Visualitza/Obre |