0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.025 0.02 0.015 Laminar flow Smooth Transition range Wholly turbulent flow 0.05 0.04 0.03 0.02 0.015 0.01

A Moody Chart (or Moody Diagram) is used to estimate the friction factor for fluid flow in a pipe. The chart represents friction factor as a function of Reynolds number and the ratio between internal pipe roughness and pipe diameter, or relative roughness, ε/D.

Colebrook and the Moody Diagram • Data from Colebrook & White (1938), Colebrook (1939) • Tested various roughness types – Large and small elements – Sparse and dense distributions • Studied many different pipes with “commercial” roughness • Nikuradse sand-grain trend with inflection deemed irregular

The Moody Chart . Title: Example of Grade Lines in a Fluid Flow Author: John Cimbala Created Date: 2/21/2005 7:12:45 PM ...

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Title: Moody Chart EngineerExcel Created Date: 1/12/2022 7:14:02 AM

In engineering, the Moody chart or Moody diagram (also Stanton diagram) is a graph in non-dimensional form that relates the Darcy–Weisbach friction factor f D, Reynolds number Re, and surface roughness for fully developed flow in a circular pipe. It can be used to predict pressure drop or flow rate down such a pipe.

moody chart - Free download as PDF File (.pdf), Text File (.txt) or read online for free. This document contains charts that show: 1) Velocity-diameter relationships for water and air at 60°F. 2) Darcy-Weisbach friction factor values for laminar, transitional, and turbulent flow in pipes.

The Moody Chart (created in 1944!)

The Moody diagram shows regions for laminar flow, transitional flow, and turbulent flow in rough pipes. It can be used to find friction factor values for water and air flowing in pipes given the velocity, diameter, and other parameters.