Effect of Gravitation on Water Migration in Granular Media

• Authors: J. Milczarek , I. Fijał-Kirejczyk , J. Żołądek , M. Chojnowski , G. Kowalczyk
• Languages of publication: EN

Abstracts

EN

The results of the experiments on water migration in unsaturated granular media performed with dynamic neutron radiography technique are presented. It was found that the porosity of the medium did not determine the kinetics of the process in a marked way. The influence of gravity was found to be considerable for media like coarse sand and gravel, consisting of large grains. No effect of gravitation on the water migration in clay beds was observed. The results are discussed in terms of the classical Washburn-Bosanquet theory of adhesion driven motion of the liquid in a straight circular capillary under gravity. It was found that this theory provides only qualitative description of the water migration within granular media, and the viscous dissipation effects are greatly underestimated.

Keywords

EN

47.56.+r; 68.08.De; 81.70.-q

Discipline

• 47.56.+r: Flows through porous media
• 68.08.De: Liquid-solid interface structure: measurements and simulations(for crystal growth from solutions and melts, see 81.10.Dn, Fq in materials science)
• 81.70.-q: Methods of materials testing and analysis(see also 82.80.-d Chemical analysis and related physical methods of analysis)

• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 4
• Pages: 1245-1254

Dates

published

2008-04

received

2007-06-03

Contributors

author

J. Milczarek

• Institute of Atomic Energy, Świerk, 05-400 Otwock, Poland

author

I. Fijał-Kirejczyk

• Institute of Atomic Energy, Świerk, 05-400 Otwock, Poland

author

J. Żołądek

• Institute of Atomic Energy, Świerk, 05-400 Otwock, Poland

author

M. Chojnowski

• Institute of Atomic Energy, Świerk, 05-400 Otwock, Poland

author

G. Kowalczyk

• Institute of Atomic Energy, Świerk, 05-400 Otwock, Poland

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Identifiers

DOI

10.12693/APhysPolA.113.1245