Dynamic pressures and forces exerted on impermeable and seaside perforated semicircular breakwaters due to regular waves |
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| Authors: | G Dhinakaran V Sundar R Sundaravadivelu K U Graw |
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| Institution: | a Department of Ocean Engineering, Indian Institute of Technology Madras, Chennai 600 036, India
b Department of Civil Engineering, University of Leipzig, Leipzig, Germany |
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| Abstract: | The semicircular breakwater (SBW) is a composite breakwater consisting of a semicircular caisson resting on a rubble mound. The SBW function as a barrier dissipates the incident wave energy and creates tranquillity on its leeside. The dynamic pressures due to regular waves exerted on seaside perforated SBWs with 7 and 11% of exposed surface area with perforations were measured. The measured pressures are compared with those exerted on impermeable SBWs. In addition, the forces exerted on the caisson alone are measured. The reflection coefficient, measured total forces on the caisson of the models, and the pressures are presented as functions of relative water depth. The effect of the water depth and the percentage of perforations on the above stated variables are examined, details of which are reported in this paper. |
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| Keywords: | Semicircular breakwater (SBW) Dynamic pressures Forces Reflection Relative water depth Impermeable Seaside perforated |
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