Ks and manning's n

May 30, 2013, 14:34	Ks and manning's n	#1
ali naqi New Member ali naqi mohammadi Join Date: Dec 2012 Posts: 6 Rep Power: 13	hi is this correct to obtain Ks from n(manning's coefficient) by: C=R^(1/6)/n C=18log(12*R/Ks) then how should i define Cs (roughness constant) ?

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