Desi gn Problem Ph ysical Environmeni 



Page no : 



Calculated by: 

 Checked Dy; 

 Date : 



12 of /33 I 



J^JV. : 



1 MaryiF\ 



Nomograph h4efhod iconf.) 



hurricane 5 



>?= 33.5 n.m. 

 Vp- 25 knots 



Omax ~ 5 mph greater than hurricane A 

 (6 mpt} = 4.^4 knots) 



Calculate Ap for U„^= &e>.h-i- 4.34 knots 



Reh. 56.1b 



a 



max 



$2.Ct knots 

 (107 mph) 



Rearranging Eq 3-35, 



Ap = 2.4 in. of mercury 

 Peak Surge on Open Coast -Hurricane A 



'^p '^ ^i fs f\4 

 Ap = 2.2 in. of mercuru 



(1 millibar = QOZib in. of mercury) 



I ^Jmiilibars o.OZ'Jb in/mb 

 From figure 3-51 for R- 33.5 n.m. = 3b. 5 mi. 



Sj = /6.5 ft. 

 From Figure 3-53 for Cape Mag, N J. 



From Figure 3-54, assuming tiurricane moves 

 perpendicular to coast (tp - so")^ 

 for Yp = 25 knots (26.& mph) 



fq.3-35 



Eq. 3-7& 



Fig. 3-51 

 fig. 3 -53 

 Fig. 3-54 



f-A/ 



1.5 



Peak Surge 



Sp^SzfsF^-' IG.5(0.3)(f.^)= n.3 ft. 



Eq.3-76 



8-12 



