10 

 9 

 8 



7 

 6 



5 



X 



< 



1.0 

 0.9 

 0.8 

 0.7 



0.6 

 0.5 



0.4 



0.3 



0.2 



0.1 

 0.9999 0.999 0.9950.99 0.98 0.95 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 



K (Bretschneider, 1957) 



Figure 3-35. Relationship for Friction Loss Over a Bottom of Constant Depth 



3-64 



