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Wave Scattering by a Semi-infinite Breakwater or a Breakwater Gap with Partially Reflective Front and Fully Reflective Back  

Suh, Kyung-Duck (Department of Civil and Environmental Engineering & Engineering Research Institute, Seoul National University)
Kim, Han-Na (Department of Civil and Environmental Engineering, Seoul National University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.19, no.3, 2007 , pp. 183-193 More about this Journal
Abstract
Analytic solutions are derived for wave scattering by a semi-infinite breakwater or a breakwater gap with partially reflective front and fully reflective back. The water depth is constant and a regular wave train is normally incident to the breakwater. Wave scattering is studied based on the linear potential wave theory. The governing equation is transformed into ordinary differential equation by using the method of variation of parameters and coordinate transformation. Comparison with finite element numerical solution shows that the analytic solution obtained in this paper gives quite good results. Using the analytic solution, the tranquility of harbor entrance is investigated by changing the reflection coefficient at the breakwater.
Keywords
Breakwaters; wave scattering; analytic solutions;
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