Posted 28 January 2004 - 09:48 PM
Posted 11 March 2004 - 05:24 PM
For who's interested in get the moody's diagram:
We have found the solution to get the results of the moody diagram, you've just to put this equation (it's in many books) in the solve mode:
1 k 2.51 ______= -2 * log(______ + _______) v? 3.7*d r* v?all this in international mesures
K is the absolute rugosity (in meters)
λ is the lambda
d is the diameter (in meters)
r is the number of Reynolds
I've made a program, but it's only to get the λ, and I think is faster this method because you can change directly all the variables.
Posted 11 March 2004 - 05:29 PM
(1/ √λ) = -2log((k/3.7*d)+(2.51/r*√λ))
and it works for all Reynolds numbers!
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