Application of Boussinesq Modeling on Water Waves through Mangroves
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- CHANG Che-Wei
- Disaster Prevention Research Institute, Kyoto University
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- MORI Nobuhito
- Disaster Prevention Research Institute, Kyoto University
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Abstract
<p> In this study, the Boussinesq-type model in Kim et al. (2009)1) was applied with the incorporation of the specific mangrove effects to simulate wave propagation and hydrodynamics in mangrove forests. Due to the depth-integrated assumption in Boussinesq-type governing equations, the mangrove effect was parameterized by the Morison-type formula (Morison et al. 1950)2) as an additional force term. The force coefficients were determined based on the experimental findings in Chang et al. (2020)3), who conducted modelscale laboratory experiments using 3D-scanned and printed mangrove trees to reproduce the root structure of a typical mature mangrove tree (Rhizophora species) at a reduced scale. Their proposed formulas were used to estimate the drag and inertia coefficients in the numerical simulation. The vertical variation of the mangrove structure due to the prop roots was also addressed in the computations. A preliminary model validation comparing with the experimental data was presented and discussed. Model tests using different configurations were also provided.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 76 (2), I_49-I_54, 2020
Japan Society of Civil Engineers