I D
× COMMENTARYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical EngineeringChementator briefs
Mercury removal Scientists at Flinders University (Adelaide, Australia; www.flinders.edu.au) have…
BUSINESS NEWSTECHNICAL & PRACTICALTOWER DOCTORFEATURE REPORTFACTS AT YOUR FINGERTIPSENGINEERING PRACTICEYOU AND YOUR JOBEQUIPMENT & SERVICESFOCUS
Weighing and Dosing
Pressure compensation ups accuracy in LIW feeders Loss-in-weight (LIW) feeder…
NEW PRODUCTS + Show More

Comment PDF Processing & Handling

Determining Friction Factors in Turbulent Pipe Flow

By Dejan Brkić Beograd, Serbia |

Head loss due to friction for fluids traveling through pipes, tubes and ducts is a critical parameter for solving turbulent-flow problems in the chemical process industries. The Colebrook equation is used to assess hydraulic resistance for turbulent flow in both smooth- and rough-walled pipes. The equation contains a dimensionless fluid-flow friction coefficient that must be calculated for the properties of the pipe and the fluid flow. Determining friction factors for the Colebrook equation requires either calculating iteratively or manipulating the equation to express friction factors explicitly. Iterative calculations can be carried out using a spreadsheet solver, but can require more computational time. Explicit expressions offer direct computation, but have a range of simplicity and corresponding error. The Lambert W function may be a better method to express friction factors explicitly because it allows users to avoid iterative calculation and also reduce relative error. This article outlines methods for determining friction factors, and discusses how to use the Lambert W function. The Lambert W function is evaluated using real data in Part 2 of the feature. Colebrook equation Pipe-flow problems are challenging because they…
Related Content
Weighing and Dosing
Pressure compensation ups accuracy in LIW feeders Loss-in-weight (LIW) feeder performance is dependent on accurate weighing, which can be affected…
Chementator briefs
Mercury removal Scientists at Flinders University (Adelaide, Australia; www.flinders.edu.au) have further characterized their sulfur-limonene polysulfide polymer (Chem. Eng., December 2015,…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
GMP In The Cosmetic Industry
Solve turbomachinery problems: Miba Tilting Pad Bearings
Six Steps to Designing a Storage Vessel That Really Works
SICK Solutions for Cleaner Industries - Powerful Transitions
Gain a Digital Line of Sight Across the Whole Lifecycle of the Plant with a Digital Twin

View More