O '2 _ 



COS cX £ = (1 4- N ) =ji_ 



Kq' - Hq /2 N cos ex: £ 



tan cx 



cot cX £ 



The txTO types of flow are seen to be functions of the di-nensionless 

 quantities C and N/Hq for laminar and turbulent flow respectively. Fi glares 

 1 and 2 are constructed on the basis of these dimensionless variables. 



The tide gage rr.aasurements w^re made using straight lengths of standard 

 wrought-iron pipe connected to a 4— inch gage well. The reference treasure- 

 ments vfere made in a gage well open at the bottom located imnediately adjacent 

 to the inlet to the conne cting pipe line . 



1 o Laminar Flow 



Tidal 

 Period 



Conne 



cting 



A 

 a 



Length 

 (ft,) 



Lag 

 (sec) 



Measured 



Max. 



F.e 





Pipe Diameter 



Q<L-e- 



Ho 

 ft 



Ho' 

 ft. 



HoL_ 

 Ho 



Norn. 



Actual 





in. 



in. 





















70,3 



1/8 



,269 



233 



1 



7.2 



-.204 



.025 



.020 



0.300 



611 



.464 





1/8 



,269 



223 



10 



15.9 



-.450 



.025 



.004 



0.160 



178 



4.64 





1 



l,0/i9 



14.76 



1 



2.1 



-.060 



.025 



.02 5 



1.000 



217 



.002 



138 



iM. 



,^A/. 



123 



40 



30,9 



-.443 



.025 



.0033 



0.132 



61 



2.87 



U0.5 



1/3 



.269 



223 



0,5 



6.5 



-.092 



.023 



,023 



1.000 



395 



.117 





1/8 



.26Q 



223 



3.0 



18,7 



-.265 



.023 



,017 



0.740 



333 



.702 





1/8 



.269 



223 



10.0 



29 .9 



-.425 



0.023 



.006 



0.261 



146 



2,34 





lA 



o364. 



123 



0.5 



1,0 



-.015 



.027 



.027 



1.000 



306 



.035 





l/U 



.364 



123 



3.0 



7.2 



-,102 



.027 



.027 



1,000 



303 



.212 





lA 



-364 



123 



10,0 



16,3 



-.231 



.027 



.022 



0.815 



243 



.706 



3?> 



