Simple and Accurate Friction Loss Equation for Plastic Pipe
Publication: Journal of Irrigation and Drainage Engineering
Volume 116, Issue 2
Abstract
The Blasius equation which has been verified by many researchers and has been recently shown to work very well for small diameter plastic pipe can be combined with the Darcy-Weisbach equation to give a simple and accurate equation written in terms of flow rate, pipe length, and pipe diameter. It allows for correcting for viscosity changes, and is very accurate for flows resulting in Reynolds numbers less than 100,000. Unlike other commonly used empirical equations in a similar form, this equation is theoretically sound and dimensionally homogeneous.
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References
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Blasius, H. (1913). “Das Aehnlichkeitsgesetz bei Reibungsavorgangen in Flussigkeiten,” Forschungsarbeiten auf dem Gebiete des Ingenieurwesens, 131(1), (in German).
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Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 116 • Issue 2 • March 1990
Pages: 294 - 298
Copyright
Copyright © 1990 ASCE.
History
Published online: Mar 1, 1990
Published in print: Mar 1990
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