Persistent Link:
http://hdl.handle.net/10150/191499
Title:
Transverse dispersion through non-uniform porous media.
Author:
Morin, George Cardinal Albert,1943-
Issue Date:
1968
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:
A laboratory experiment was devised to measure the effect on transverse dispersion of a permeability interf ace. A layer of coarse sand was interposed within a matrix of fine sand at two different orientations: (1) at right angles, and (2) at an angle of 60 °, to the direction of flow. Dispersion was first measured in fine sand alone in order to obtain a base measurement unaffected by permeability changes. Calculations for the non-uniform cases were made assuming that increased dispersion could be accounted for by changes in medium particle size. Thus in the calculations it is assumed that the permeability interface does not affect transverse dispersion. With the coarse sand layer at right angles to the flow field, the standard deviation of the observed dispersion was about 27% greater than predicted. With the layer at a 60 ° angle to the flow field, the standard deviation of the observed dispersion was 79% greater than predicted. Thus it appears that a permeability interface in a porous medium does have an effect on dispersion and that the magnitude of the effect depends, in part, on the orientation of the interface to the direction of mean flow.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Fluid dynamics.; Soil percolation.; Groundwater.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Simpson, Eugene S.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleTransverse dispersion through non-uniform porous media.en_US
dc.creatorMorin, George Cardinal Albert,1943-en_US
dc.contributor.authorMorin, George Cardinal Albert,1943-en_US
dc.date.issued1968en_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.abstractA laboratory experiment was devised to measure the effect on transverse dispersion of a permeability interf ace. A layer of coarse sand was interposed within a matrix of fine sand at two different orientations: (1) at right angles, and (2) at an angle of 60 °, to the direction of flow. Dispersion was first measured in fine sand alone in order to obtain a base measurement unaffected by permeability changes. Calculations for the non-uniform cases were made assuming that increased dispersion could be accounted for by changes in medium particle size. Thus in the calculations it is assumed that the permeability interface does not affect transverse dispersion. With the coarse sand layer at right angles to the flow field, the standard deviation of the observed dispersion was about 27% greater than predicted. With the layer at a 60 ° angle to the flow field, the standard deviation of the observed dispersion was 79% greater than predicted. Thus it appears that a permeability interface in a porous medium does have an effect on dispersion and that the magnitude of the effect depends, in part, on the orientation of the interface to the direction of mean flow.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshFluid dynamics.en_US
dc.subject.lcshSoil percolation.en_US
dc.subject.lcshGroundwater.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.chairSimpson, Eugene S.en_US
dc.identifier.oclc224569839en_US
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