I have the classpad 300 and I would a program to search in the moody diagram, where I could found it? Where is a web site whith programs

# Moody diagram

Started by
Fox
, Jan 28 2004 09:48 PM

4 replies to this topic

### #1

Posted 28 January 2004 - 09:48 PM

### #2

Posted 28 January 2004 - 09:59 PM

### #3

Posted 28 January 2004 - 11:25 PM

what is "moody diagram" ?

### #4

Posted 11 March 2004 - 05:24 PM

The Moody's diagram is a graphic to get a variable to calculate the power you loose caused for the pipe at transfering fluids as water (excuse my english , I'm "lost in translation")

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:

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.

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.

### #5

Posted 11 March 2004 - 05:29 PM

sorry the equation has been desconfigurated, let's try...

(1/ √λ) = -2log((k/3.7*d)+(2.51/r*√λ))

and it works for all Reynolds numbers!

(1/ √λ) = -2log((k/3.7*d)+(2.51/r*√λ))

and it works for all Reynolds numbers!

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