Two-dimensional water flow through stratified unsaturated porous media : laboratory sand-box experiments

Persistent Link:
http://hdl.handle.net/10150/192029
Title:
Two-dimensional water flow through stratified unsaturated porous media : laboratory sand-box experiments
Author:
Mathieu, James Thomas,1960-
Issue Date:
1989
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Five sand-box experiments were conducted to investigate the behavior of water flow in unsaturated stratified porous media. The hydraulic properties OM and K(0) of the medium and coarse sands used in the experiments were measured with various laboratory columns. Fourteen layers comprised of the medium and coarse sands were alternately layered in a 2.38 m long x 1.12 m high x 0.1 m thick sand tank. Water was infiltrated from a point source for three of five experiments and from a channel source for two experiments. An array of 62 tensiometers was used to record the tension head distribution during each experiment. The wetting front profiles of the first experiment show the stratified sand affects both the development and dissipation of preferential flow paths. The observed wetting front behavior and an analysis of the possible behavior of the effective hydraulic conductivity at the medium on coarse sand interface qualitatively supports the the concept of saturation dependent anisotropy (Yeh et al., 1985b; and Mantoglou and Gelhar, 1987b). The hydraulic properties of the medium and coarse sands, the boundary and initial conditions of four sand-box experiments, and the results from these experiments can be used to test an unsaturated numerical model.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Groundwater flow.; Groundwater -- Pollution.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Yeh, T.-C. Jim

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleTwo-dimensional water flow through stratified unsaturated porous media : laboratory sand-box experimentsen_US
dc.creatorMathieu, James Thomas,1960-en_US
dc.contributor.authorMathieu, James Thomas,1960-en_US
dc.date.issued1989en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractFive sand-box experiments were conducted to investigate the behavior of water flow in unsaturated stratified porous media. The hydraulic properties OM and K(0) of the medium and coarse sands used in the experiments were measured with various laboratory columns. Fourteen layers comprised of the medium and coarse sands were alternately layered in a 2.38 m long x 1.12 m high x 0.1 m thick sand tank. Water was infiltrated from a point source for three of five experiments and from a channel source for two experiments. An array of 62 tensiometers was used to record the tension head distribution during each experiment. The wetting front profiles of the first experiment show the stratified sand affects both the development and dissipation of preferential flow paths. The observed wetting front behavior and an analysis of the possible behavior of the effective hydraulic conductivity at the medium on coarse sand interface qualitatively supports the the concept of saturation dependent anisotropy (Yeh et al., 1985b; and Mantoglou and Gelhar, 1987b). The hydraulic properties of the medium and coarse sands, the boundary and initial conditions of four sand-box experiments, and the results from these experiments can be used to test an unsaturated numerical model.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshGroundwater flow.en_US
dc.subject.lcshGroundwater -- Pollution.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineHydrology and Water Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairYeh, T.-C. Jimen_US
dc.identifier.oclc213448057en_US
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