Author: Edwin Henry NiemannPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Dispersion During Flow in Non-uniform, Heterogenous Porous Media
Author: Edwin Henry NiemannDispersion in Heterogeneous Nonuniform Anisotropic Porous Media
Author: Robert Albert GreenkornPublisher:
ISBN:
Category : Dispersion
Languages : en
Pages : 102
Book Description
Dispersion in Heterogeneous Nonuniform Anisotropic Porous Media
Author: Robert Albert GreenkornPublisher:
ISBN:
Category : Dispersion
Languages : en
Pages : 82
Book Description
The objective of this project is to study the theory and measurement of dispersion during miscible flow in heterogeneous nonuniform anisotropic porous media. An understanding of the dispersion phenomenon is necessary to predict flow of miscible fluids in non-homgeneous porous media. A significant literature review of dispersion in non-homogeneous porous media was accomplished. The continuum and statistical theories of flow in porous media were studied. A series of experiments in models of unconsolidated porous media were run to study the effects of heterogeneity, nonuniformity, and anisotropy on dispersion. The non-homogeneities are defined in relation to permeability of the media and dispersion coefficients are correlated with respect to permeability. Tracer output curves from models were interpreted for dispersion. Dispersion changes significantly with permeability. When models of different permeability are connected, the dispersive effect is not reciprocal. Dispersion changes significantly with nonuniformity. Likewise there is a significant effect when models of different nonuniformity are interconnected (second-order heterogeneity). Anisotropy was included in two kinds of models (linear and radial) by packing alternate layers of beads causing flow through these layers at different angles. The usual dispersion model is not adequate for "block box" prediction of the tracer output curve for data on anisotropic shperes. The results have immediate practical applicates, especially in tracing of contaminents in surface and subsurface flow such as movement of pesticides, fertilizers, acid mine drainage, feed-lot waste, etc. through the soil.
Dispersion in Heterogeneous Nonuniform Anisotropic Porous Media
Author: United States Environmental Protection Agency (EPA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781722379650
Category :
Languages : en
Pages : 96
Book Description
Dispersion In Heterogeneous Nonuniform Anisotropic Porous Media
Dispersion in Heterogeneous Nonuniform Anisotropic Porous Media
Author: U.S. Environmental Protection Agency. Water Quality OfficePublisher:
ISBN:
Category :
Languages : en
Pages : 75
Book Description
Dispersion in heterogeneous nonuniform anisotropic porous media
Author: Robert A. GreenkornDispersion of Heterogenous Nonuniform Anisotropic Porous Media [with List of References]
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Author: Longitudinal Dispersion in Nonuniform, Isotropic Porous Media
Author: James E. HouseworthPublisher:
ISBN:
Category : Dispersion
Languages : en
Pages : 216
Book Description
Transverse Dispersion in Liquid Flow Through Porous Media
Author: Eugene Sidney SimpsonPublisher:
ISBN:
Category : Diffusion in hydrology
Languages : en
Pages : 40
Book Description
Author: J. Bear