Abstract
A time-domain method, based on linear velocity potential theory, is presented to study the interaction between narrow-banded random waves and perforated structures. A simple relation is derived to estimate the jet length of flows through the perforated wall. The reflection coefficient of narrow banded random waves from perforated structures is calculated by assuming a Rayleigh distribution of the heights of incident random waves. For reflection of narrow-banded waves from a single-chamber perforated breakwater, a comparison of the predicted and measured reflection coefficients shows that the method presented in this paper can provide a prediction better than that of regular waves. Numerical results are also reported on the reflection of narrow-banded waves from multi-chamber perforated breakwaters.
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The project partially supported by the Hong Kong Research Grant Council (DAG03/04.EG39, DAG04/05.EG32).
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Huang, Z. A method to study interactions between narrow-banded random waves and multi-chamber perforated structures. Acta Mech Mech Sinica 22, 285–292 (2006). https://doi.org/10.1007/s10409-006-0021-x
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DOI: https://doi.org/10.1007/s10409-006-0021-x