(Johnson , 1952 ) 



Contours of equal diffraction coefficient gap 

 width = 3.82 wavelengths (B/L = 3.82). 



■BREAKWATER 



Diffrocted Wove Height 

 incident Wove Height 



GAP 



OJRECTION OF 

 INCIDENT WAVE 



K'=I.O K'=I.O 



K = 1.282 



K:|.2 



Figure 2-52. Contours of equal diffraction coefficient gap 

 width = 5 wavelengths (B/L = 5). 



2-98 



