FLOW IN OPEN CHANNELS 



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strictly mathematical solution for flow in open channels and rivers of 

 irregular section, and even to observe and record correctly the physical 

 data required is almost impossible. An examination of the results given 

 by an application of the various formulae shows that for abnormal sections 

 or velocities a difference of 50 per cent, is not uncommon. 



COEFFICIENTS FOR FLOW IN OPEN CHANNELS. 



Here a channel is said to be in very good order when it is free from 

 boulders, hollows in its bed and banks, sharp bends, snags and weeds 



