Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)
- 2001.05a
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- Pages.186-195
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- 2001
A Study of the Numerical Model on the Interaction between Irregular Waves and Permeable Coastal Structures
투수성해안구조물과 불규칙파의 상호작용에 관한 수치모델 연구
Abstract
The purpose of this study is to develop the time-dependent, one-dimensional numerical model on the interaction between irregular waves and two-layer permeable coastal structures, by extending and modifying the numerical model PBREAK(Wurjanto and Kobayashi, 1992) which is applicable only to one-layer permeable coastal structures. The two-layer permeable coastal structure consists of two permeable underlayers with different permeable media resting on an impermeable slope and an armor layer covering the permeable underlayer. The numerical model of this study simulates the wave over rough permeable underlayer of arbitrary geometry as well as the waves inside two-permeable underlayers of arbitrary thickness for specified normally-incident irregular waves. The utility of the numerical model is founded from comparing with PBREAK and the four hydraulic model tests under irregular waves. The sensitivities of computed results according to typical parameters(porosity, stone diameter, horizontal width of the permeable underlayer) and major factors(friction factor of primary armor layer etc.) discussed.
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