Fig. 26 CONTOURS OF EQUAL DIFFRACTION COEFFICIENT 

 GAP WIDTH = 1.78 WAVE LENGTHS (B/L=l. 78) 



< kU 



i DIRECTION OF ^ 

 ] INCIDENT WAVE 



GAP _ K': 1.203 K'=I.O 



,_ Diffracted Wove Height 

 Incident Wave Height 



K"=0.8 



K = 0.6 



WAVE CRESTSn 



Fig. 27 CONTOURS OF EQUAL DIFFRACTION COEFFICIENT 

 GAP WIDTH = 2 WAVE LENGTHS (B/L = 2) 



DIFFRACTION OF WAVES AT A BREAKWATER GAP 



36 



