.2.0 



1 1.5 



1.0 



0.5 



O expf (a) 

 (D expt (b) 



0.2 



0.3 0.4 0.5 0.6 0.7 

 Cylinder Submergence, ^/a^ 



0.8 0.9 



Figure 103. Twin-cylinder floating breakwater stability and natural 

 periods of oscillation (after Ofuya, 1968). 



1.0 



0.9 



.2 0.8 



?. 0.7 



£ 0.6 



0.5 



0.3 04 , 0.5 



Cylinder Submergence, ajya 2 



Figure 104. Effect of cylinder submergence, aj/a 2 , and relative water 

 depth, L/d, on transmission coefficient, CL, for twin- 

 cylinder floating breakwater (after Ofuya, 1968). 



155 



