Research Article
Nov 1969
Nonlinear Flow in Porous Media
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 95, Issue 6
Abstract
Many investigators are concerned about the validity of the Forchheimer equation which represents the relationship between the velocity of flow and pressure gradient in porous media. A theoretical development of this equation through analysis of the dimensionless form of the Navier-Stokes equation is presented. It shows that energy losses at high-flow velocities in porous medium are a result of convective acceleration effects not turbulent effects. In addition, two dimensionless terms representing the flow behavior are defined and evaluated. It is shown that a constant could be used to represent the geometric properties of the medium and that a characteristic length representative of the flow exist. Both of these quantities are easily evaluated through hydraulic measurements of gradients and flow velocities. Experimental data from many sources were used to evaluate the theoretical results.
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Published In
Journal of the Hydraulics Division
Volume 95 • Issue 6 • November 1969
Pages: 1847 - 1858
Copyright
© 1969 American Society of Civil Engineers.
History
Published in print: Nov 1969
Published online: Feb 3, 2021
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Authors
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Nazeer Ahmed, AM.ASCE
Asst. Prof. of Civ. Engrg., Univ. of Missouri Rolla Mo.
Daniel K. Sunada, AM.ASCE
Asst. Prof. of Civ. Engrg., Colorado State Univ., Fort Collins, Colo.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.