Non-Darcy flow characteristics of water as influenced by clay concentration

Miller, Raymond J.; Overman, Allen R.; Peverly, John H.

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https://hdl.handle.net/2142/90171 Copy

Description

Title

Non-Darcy flow characteristics of water as influenced by clay concentration

Author(s)

• Miller, Raymond J.
• Overman, Allen R.
• Peverly, John H.

Contributor(s)

University of Illinois at Urbana-Champaign

Issue Date

1968-06

Keyword(s)

• Water resources center
• Water resources center--Illinois
• Hydrology and hydraulics
• Non-Darcy flow
• Threshold gradients
• Pressure transducers

Geographic Coverage

Illinois (state)

Abstract

The flow of water through saturated samples of montmorillonite and kaolinite was studied to help clarify the existence and nature of non-Darcian flow. No threshold gradients were found in any of the samples studied. Non-Darcy flow was found in 9, 30 and 40 weight percent montmorillonite samples but not in a 50 weight percent montmorillonite or in kaolinite samples. The possible causes of the non-Darcian flow are discussed. A refined technique using a pressure transducer was developed to measure hydraulic conductivities. The hydraulic conductivities of several types of samples under varying conditions were measured. Transport equations for convective diffusion in porous media were derived and tested for capillaries, porous diaphragms, sand columns and clay plugs.

Publisher

University of Illinois at Urbana-Champaign. Water Resources Center

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/90171

Sponsor(s)/Grant Number(s)

• U.S. Department of the Interior
• U.S. Geological Survey

Copyright and License Information

Copyright 1968 held by Raymond J. Miller, Allen R. Overman, John H. Peverly

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