Index Catalog // ScholarsArchive@OSU

Hybrid Multiscale Methods with Applications to Semiconductors, Porous Media, and Materials Science

Creator:: Costa, Timothy B.
Abstract:: In this work we consider two multiscale applications with tremendous computational complexity at the lower scale. First, we examine a model for charge transport in semicon- ductor structures with heterojunction interfaces. Due to the complex physical phenomena at the interface, the model at the design scale is unable to adequately...
Resource Type:: Dissertation
Full Text:: decomposition methods that decouple the interface computation from the macroscale model. For the fluid flow

A numerical study of inertial flow features in moderate Reynolds number flow through packed beds of spheres

Creator:: Finn, Justin Richard
Abstract:: In this work, flow through synthetic arrangements of contacting spheres is studied as a model problem for porous media and packed bed type flows. Direct numerical simulations are performed for moderate pore Reynolds numbers in the range, 10 ≤ Re ≤ 600, where non-linear porescale flow features are known to...
Resource Type:: Dissertation
Full Text:: contacting spheres is studied as a model problem for porous media and packed bed type flows. Direct numeri

Stochastic analysis of flow and transport in porous media

Creator:: Vasylkivska, Veronika S.
Abstract:: Random fields are frequently used in computational simulations of real-life processes. In particular, in this work they are used in modeling of flow and transport in porous media. Porous media as they arise in geological formations are intrinsically deterministic but there is significant uncertainty involved in determination of their properties...
Resource Type:: Dissertation
Full Text:: accomplish without partial support by NSF DMS 0511190 “Model adaptivity in porous media” and NSF DMS 1115827

The prediction of unsaturated flow rates from physical properties of the porous medium: project completion report

Creator:: Boersma, L.
Resource Type:: Technical Report
Full Text:: which water transmission coefficients for any porous material may be predicted reliably without the

A numerical study of viscous, incompressible fluid flow problems

Creator:: Terry, Michael D.
Abstract:: The mathematical technique of overrelaxation is used here to speed the convergence of a numerical method for solving viscous, incompressible fluid flow problems. The method, called MAC, involves approximating the complete two-dimensional incompressible Navier-Stokes equations with analogous finite-difference equations. The MAC method was developed by the Los Alamos Scientific Laboratory...
Resource Type:: Masters Thesis
Full Text:: NUMERICAL STUDY OF VISCOUS, INCOMPRESSIBLE FLUID FLOW PROBLEMS Redacted for Privacy_ Abstract approved

Simple models for the structure and dynamics of polyatomic fluids

Creator:: James, Corinne Patricia
Abstract:: Three areas of liquid state theory are considered. First, Monte Carlo computer simulation of a two-dimensional hard disk fluid with an imbedded ellipse was undertaken to determine how a non-spherical molecule affects intermolecular ordering. The elliptical molecule (with axial ratios of 2, 5 and 10) altered the isotropic distribution of...
Resource Type:: Dissertation
Full Text:: simulation of a two-dimensional fluid of hard disks is used to model the fluid of isotropic molecules and

Winter cover cropping effects on integrative biological indicators of soil quality

Creator:: Ndiaye, Evelyne L.
Abstract:: Responses of biological indicators of soil quality to winter cover cropping were measured on soil samples collected from 6 commercial growers' fields and two experiment research stations in the Willamette Valley of Oregon. The research stations were the North Willamette Research and Extension Center (Aurora, OR), and the Oregon State...
Resource Type:: Masters Thesis
Full Text:: define soil as the unconsolidated cover of the earth, made up of mineral, organic material, water, and

Using a single-well push-pull test to estimate mass transfer rate parameters

Creator:: Kelley, Michael John
Abstract:: More efficient methods are needed for the in-situ evaluation of mass transfer parameters which describe the movement of solutes through aquifer material. The objective of this study was to develop a method for estimating diffusion rate and capacity coefficients using a single-well, "push-pull" tracer test. The method consists of the...
Resource Type:: Masters Thesis
Full Text:: 2.4 Mathematical Model 22 3. PHYSICAL AQUIFER MODF.T. (PAM) 27 3.1 Overview and Background

A lagrangian philosophy for plume modeling

Creator:: Frick, Walter Eugen
Resource Type:: Dissertation
Full Text:: 46 Entrainment and Merging 47 MATHEMATICAL DEVELOPMENT 49 Basic Model Theory 49 Plume Dynamics 51

Thermodynamic correction for salts in variably saturated porous media

Creator:: Burns, Erick R.
Abstract:: Using thermodynamic principles, the general relationship describing the equilibrium vapor content in the gas phase above a saline liquid and across a curved liquid-gas interface is developed. Since high salt concentration also affects the intensive and extensive liquid properties, it is also necessary to account for these effects in liquid...
Resource Type:: Masters Thesis
Full Text:: years, and his conceptual model of flow of salts in unsaturated porous media formed the foundation upon

ScholarsArchive@OSU

Hybrid Multiscale Methods with Applications to Semiconductors, Porous Media, and Materials Science

A numerical study of inertial flow features in moderate Reynolds number flow through packed beds of spheres

Stochastic analysis of flow and transport in porous media

The prediction of unsaturated flow rates from physical properties of the porous medium: project completion report

A numerical study of viscous, incompressible fluid flow problems

Simple models for the structure and dynamics of polyatomic fluids

Winter cover cropping effects on integrative biological indicators of soil quality

Using a single-well push-pull test to estimate mass transfer rate parameters

A lagrangian philosophy for plume modeling

Thermodynamic correction for salts in variably saturated porous media

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