Development of Green-Naghdi models with a wave-absorbing beach for nonlinear, irregular wave propagation |
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| Authors: | Qi Xu J. S. Pawlowski R. E. Baddour |
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| Affiliation: | (1) Department of Naval Architecture and Ocean Engineering, Hiroshima University, 1-4-1 Kagamiyama, 739 Higashi-Hiroshima, Japan;(2) Centre for Marine Simulation, Marine Institute, MUN, St. John's, NF, Canada;(3) National Research Council, Institute for Marine Dynamics, Station A, P.O. Box 12093, St. John's, NF, Canada |
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| Abstract: | Two-dimensional and three-dimensional Green-Naghdi (GN) models equipped with a numerical wave-absorbing beach have been developed to simulate nonlinear, regular, and irregular wave propagation. The numerical beach is introduced near the downstream boundary to absorb outgoing waves. An appropriate amount of numerical damping and an appropriate length of numerical beach are investigated using numerical experiments. The results show that the GN models with a numerical beach work very well in simulating wave propagation in water in a small computational domain. |
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| Keywords: | numerical beach Green-Naghdi models non-linear irregular waves |
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