WAVE INTERACTIONS WITH N-EMERGED POROUS BREAKWATERS ON A MUDDY BOTTOM
In this study, we investigate wave attenuation by n-emerged porous breakwaters in a muddy basin. We use a Two-Layer Shallow Water Type model for capturing the interaction for water and mud. The wave transmission coefficient, which is the ratio of the amplitude of the wave transmitted by the basin...
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| Main Author: | |
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/64687 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | In this study, we investigate wave attenuation by n-emerged porous breakwaters
in a muddy basin. We use a Two-Layer Shallow Water Type model for capturing
the interaction for water and mud. The wave transmission coefficient, which is the
ratio of the amplitude of the wave transmitted by the basin to the amplitude of the
incoming wave, is then derived analytically from the model. This coefficient is our
instrument for evaluating the effectiveness of the whole basin in reducing incoming
wave amplitude. Additionally, the finite volume method on a staggered finite grid
is then used to solve the model numerically and compute the numerical version
of the corresponding wave transmission coefficient. The numerical scheme is then
validated by comparing simulation results and analytical results. The numerical
scheme is then used alongside the analytical formulation of the wave transmission
coefficient to investigate the effects of varying the size and characteristics of the
porous breakwaters and that of separating a single block of porous breakwater into
multiple blocks of porous breakwaters on the wave attenuation capabilities of the
basin. We believe that these findings would be beneficial in the design of a coastal
protection system |
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