Design Problem Phusical Environment 



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 Calculated by: 

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Date 



56 of/33 

 J. R. 'A'. 



7kp^ 



n Mor. 73 



i/\/Qvc Conditions on Ocean Side of Island (cont) 

 Hurricane Waves [cont) 



\Nhere 



ff - friction factor = 0.01 



Ax = reach length ih ft 



5nm. * ^O&O ft = S0,400 ft 

 nm. 



Hf, from column 7 

 df from column 5 



._ 0.01 (5G.^)(o.m)(soAoo) - 0.05^ 



Column 12: From Figure 3-55, for A = 00554 

 and Te^/J = 0.4-Gl, 



K.f = fO (txj etfropolotion) 

 {negligible energy dissipation) 



Column f3: Equivalent deepwater wave height 

 Hq - Kf Ho 

 where Kf is from osiumn IZ. 



Mj'= 1.0 (5^.b)^ SG.Qft 



(Refraction coefficient, Kf^^l.O 

 has been assumed) 



Column 14: Effective fetch for Ho, given by, 

 ^* \0.0655Ugi 



[0655 U,^ 

 56.Q "» 2 



ij_5^ \\ 



^« \0.05SSi^l.(i>)\ 



122 nm. 



Fig. 3-55 



E^. 3-40 



8-58 



