00 



60 



40 



m 20 





Diameter to 





wavelength 



Curve 



ro»'o, d/L 

 0.025 r P 



1 



2 



0.035 



3 



0055 



4 



0075 



5 



0095 



FLOAT DENSITY 

 WATER DENSITY 



= 0.04 



0.2 04 06 0.8 1.0 1.2 1.4 

 RATIO OF DEPTH-TO-DEEPWATER WAVELENGTH AT PEAK ENERGY, d/L 



Figure 116. Performance estimation of tethered-f loat breakwater at 

 a theoretical 50-percent wave height reduction (after 

 Seymour and Isaacs, 1974). 



80 



60 



40 



or 

 m 20 



Curve 

 I 



2 

 3 

 4 



Diameter to 

 wavelength 

 ratio, d/j/L 



0.015 I 



0.025 



0035 



0.055 



FLOAT DENSITY 

 WATER DENSITY 



0.04 



02 0.4 0.6 08 10 1.2 1.4 



RATIO OF DEPTH-TO-DEEPWATER WAVELENGTH AT PEAK ENERGY, d/L 



P 



Figure 117. Performance estimation of tethered-f loat breakwater at 

 a theoretical 25-percent wave height reduction (after 

 Seymour and Isaacs, 1974). 



171 



