









































1.3 - 



































h . 





5 



1.2 - 







































h' 









































o 













-H-5- 











SYNTHETIC DAMAGE 











I 























TREND 

















































tr 





















n*' 





















< 



0.8 - 

 0.7 - 









O 



LE( 



3SERV 



5END 

 ED DA 



TA 







b 



B 



















0.6 - 

 0.5 - 









' 



I 





























SPECTRAL STABILITY NUMBER . Ns 



Figure 16. Comparison of data and the synthetic damage trends 

 generated by the stability model for subset 9 



Wave Transmission 



30. For the tests mentioned above the wave transmission coefficient K 



is defined as 



K t=iT 

 c 



(ID 



where H is the zero-moment transmitted wave height, and H is the zero- 

 t 6 c 



moment wave height at the transmitted gage locations with no breakwater in the 

 test channel. Although this is not the most commonly used definition of K , 

 it has some advantages over the traditional definition which is given by the 

 ratio of transmitted to incident wave height. Equation 11 can be stated as 

 the ratio of the transmitted wave height to the wave height which would be 

 observed at the same location without the breakwater in the channel. This 

 definition eliminates wave energy losses occurring between the incident and 

 transmitted gages in the absence of a breakwater in the testing channel. 



28 



