







/ A 





o 























































oc 



a. 



X 





L/d 



4.22— y. 











/ 



i 









L/d 



333 ~\( 







>/ o 















L/d 



1.78— v 





E 





a/ 

























T ./ 







t 



sk 



























O02 <U>4 aoG o.oe 



Incident Wave Steepness, H i /L- 



Figure 152. Effect of incident wave steepness, H-/L.J, 

 and relative wavelength, L/d, on horsepower 

 requirements, <J>, of hydraulic breakwater 

 (after Herbich, Ziegler, and Bowers, 1956). 



^ 50 



e 4.0 



\c 



















©\ 











BREAKWATER CHARACTERISTICS 











cjX 



X^D 



CI 



1 Submergence 4- 

 annel Width 9. 







•\ 



o 





i 





W 



ater Dept 



Is Per Fo 



5.10 



2 56 



4. 

 ol * 

 O 



c 



• 

 • 



5 



D 



n 





D /^ 











1 33 

 0.67 



B 

 ■ 





b/ 











WAVE CHARACTERISTICS 







©£ 



(s^O 





Wovesieepness 0.04 









W 



ove Atteni 



ation 100° 



/. 























2-0 G 



E 10 



0001 0002 0003 0004 0005 0006 0007 0008 0009 



Area of Jets 

 Cross-Sectional Area of Channel 



Figure 153. Effect of dimensionless jet area on discharge and 

 horsepower requirements of hydraulic breakwater 

 (after Herbich, Ziegler, and Bowers, 1956). 



213 



