Validity of Forchheimer Equation in Radial Flow through Coarse Granular Media
Publication: Journal of Engineering Mechanics
Volume 123, Issue 7
Abstract
The validity of application of the Forchheimer equation for steady non-Darcy radial flow through coarse granular media and glass spheres has been investigated experimentally. The drawbacks observed while computing the coefficients of this equation have been critically reviewed. An expression is obtained for hydraulic gradient in the case of radial flow. For coarse granular media, a relationship between specific surface and volume diameter has been obtained. In the range of experiments conducted lying in turbulent regime (300 <R< 7,000) a simple form of expression absorbing the effects of variations in size of the medium, number of sizes of the samples used, and porosity of the medium relating resistance to flow and flow pattern in a converging flow configuration is developed. Porosity effect and wall effect are included to make the results of the study more realistic and practically applicable.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 123 • Issue 7 • July 1997
Pages: 696 - 705
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: Jul 1, 1997
Published in print: Jul 1997
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