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Resonant Reflection and Refraction-Diffraction of Surface Waves due to Porous Submerged Breakwaters
A wave equation, taking account of the effects of porous medium, is transformed into coupled parabolic equations. It is assumed in the theory that the mean water depth and the thickness of porous layer are slowly varying and the bottom undulation is rapidly varying compared to the wavelength of surface waves. Though we can utilize the Bragg reflection to reduce transmitted waves behind breakwaters in one-dimensional case, wave heights behind breakwaters do not always decrease due to wave refraction-diffraction in horizontal two-dimensional case. By adding a dissipation term to the coupled parabolic equations, we can calculate the wave breaking deformation.
Resonant Reflection and Refraction-Diffraction of Surface Waves due to Porous Submerged Breakwaters
A wave equation, taking account of the effects of porous medium, is transformed into coupled parabolic equations. It is assumed in the theory that the mean water depth and the thickness of porous layer are slowly varying and the bottom undulation is rapidly varying compared to the wavelength of surface waves. Though we can utilize the Bragg reflection to reduce transmitted waves behind breakwaters in one-dimensional case, wave heights behind breakwaters do not always decrease due to wave refraction-diffraction in horizontal two-dimensional case. By adding a dissipation term to the coupled parabolic equations, we can calculate the wave breaking deformation.
Resonant Reflection and Refraction-Diffraction of Surface Waves due to Porous Submerged Breakwaters
Mase, Hajime (author) / Kimura, Akira (author) / Sakakibara, Hiroshi (author)
25th International Conference on Coastal Engineering ; 1996 ; Orlando, Florida, United States
Coastal Engineering 1996 ; 2366-2376
1997-08-05
Conference paper
Electronic Resource
English
Resonant Reflection and Refraction-Diffraction of Surface Waves Due to Porous Submerged Breakwaters
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