Performance Comparison of a Hydraulic Breakwater Attenuating Random and Monochromatic Waves.
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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Based on work performed by various engineers and scientists, Straub, et al Taylor Williams Horikawa etc., small scale experiments were performed to compare the performance of a hydraulic breakwater for attenuation of various random wave spectra to monochromatic waves. Previous experiments were conducted in the presence of monochromatic waves and wind generated waves, the wind generated waves being closer to natural occurrences than monochromatic waves. Four wave spectra, Darbyshire, Pierson, ITTC and Jonswap, were generated against a breakwater set at a fixed depth and fixed jet area per foot maximum mechanically attainable while varying the flowrate. The results indicate a much larger discharge requirement for the attenuation of random waves to the same degree as monochromatic waves of similar magnitude. This is due to the fact that the breakwater does not work as well on the longer waves of the spectrum as it does on the shorter waves. Author
- Physical and Dynamic Oceanography
- Hydrology, Limnology and Potamology
- Civil Engineering