. Characteristics of reef breakwaters. Breakwaters; Ocean waves; Water waves. about this analysis is that the reef does not produce much shift in the peak period of the spectrum. In fact, in only a few tests was the shift as much as 10 percent. Wave Reflection and Energy Dissipation 36. The method developed by Goda and Suzuki (1976) to resolve the wave spectrum into incident and reflected components is the method used in this study to calculate the reflection coefficient. According to Goda and Suzuki, the reflection coefficient is defined as where E and E are the reflected and incident wave en
. Characteristics of reef breakwaters. Breakwaters; Ocean waves; Water waves. about this analysis is that the reef does not produce much shift in the peak period of the spectrum. In fact, in only a few tests was the shift as much as 10 percent. Wave Reflection and Energy Dissipation 36. The method developed by Goda and Suzuki (1976) to resolve the wave spectrum into incident and reflected components is the method used in this study to calculate the reflection coefficient. According to Goda and Suzuki, the reflection coefficient is defined as where E and E are the reflected and incident wave energy of the spec- trum, respectively. 37. One variable, the reef reflection parameter, was found to be con- spicuously better than others for predicting wave reflection and is formulated as. This parameter can be thought of as approximately the ratio of wave length to horizontal distance between the toe of the reef and the swl on the reef. Since, for many tests, the reefs are deformed and/or submerged, the quantity (A /h )d is sometimes only indicative of this horizontal distance. When K \ t c/ s r is plotted versus the reef reflection parameter, a very strong data trend re- sults (Figure 25). Such a strong trend seems surprising considering the com- plex nature of irregular wave reflection and the wide range of conditions represented in Figure 25. A regression equation was fit to the data shown in Figure 25 to provide a convenient rule-of-thumb method to estimate reflection from a reef and to provide insight relating to wave reflection from coastal structures in general. The equation is given by 36. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ahrens, John P; United States. Army. Corps of Engineers; U. S. Army Engineer Waterways Experiment Station; Coastal Engineering Research Center (U. S. ). [Vicksburg
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