Fluid mechanics, help in finding the dancy friction factor

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SUMMARY

The discussion focuses on calculating the Darcy friction factor using the Colebrook-White equation without the Moody chart. The equation is expressed as 1/√f = -2LOG[(e/d)/3.71 + 2.51/(Re*√f)]. The iterative process for solving the Darcy friction factor involves selecting an initial guess for f and refining the value until the equation balances. An example of this iterative calculation was requested by participants in the forum.

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How to find the dancy friction factor by using the colebrook white equation (not using the moody chart) ; to calculate the 1/√f = -2LOG[(e/d)/3.71 + 2.51/(Re*√f)]

help please
 
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The Darcy friction factor is solved using an iterative process. You have to use a starting gues value for f and then plug the answer in and repeat until you get the f's on either side of the equation to balance.
 
can you show me an example for this if there is available, please!
 

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