K:|.0 K =1.268 K:|.2 



DlRECTfON OF 



K'=I.O 



INCIDENT WAVE 



(! 



Fig. 30 CONTOURS OF EQUAL DIFFRACTION COEFFICIENT 

 GAP WIDTH = 3.82 WAVE LENGTHS (B/L=3.82) 

 BREAKWATER 



,_ Diffroeted Wove Height 

 "^ " Incident Wave Height 



Fig. 31 CONTOURS OF EQUAL DIFFRACTION COEFFICIENT 

 GAP WIDTH = 5 WAVE LENGTHS (B/L=5) 



DIFFRACTION OF WAVES AT A BREAKWATER GAP 



38 



