Index Catalog // ScholarsArchive@OSU

Virtual Element Methods for Magnetohydrodynamics on General Polygonal and Polyhedral Meshes

Creator:: Naranjo, Sebastián
Abstract:: The aim of this dissertation is to construct a virtual element method (VEM) for models in magneto-hydrodynamics (MHD), an area that studies the behavior and properties of electrically conducting ﬂuids such as a plasma. MHD models are a coupling of the Maxwell’s equations for electromagnetics and models for ﬂuid ﬂow....
Resource Type:: Dissertation
Full Text:: : Vrushali A. Bokil The aim of this dissertation is to construct a virtual element method (VEM) for models

Analysis of fourth order numerical methods for the simulation of electromagnetic waves in dispersive media

Creator:: Henderson, Scott Edward
Abstract:: In this thesis, we investigate the problem of simulating Maxwell's equations in dispersive dielectric media. We begin by explaining the relevance of Maxwell's equations to 21st century problems. We also discuss the previous work on the numerical simulations of Maxwell's equations. Introductions to Maxwell's equations and the Yee finite difference...
Resource Type:: Masters Thesis
Full Text:: : Vrushali Bokil In this thesis, we investigate the problem of simulating Maxwell’s equations in dis

The implicit derivative matching technique for Maxwell's equations in complex heterogeneous media

Creator:: Kirk, Anna Rae
Abstract:: We construct an implicit derivative matching (IDM) technique for restoring the accuracy of the Yee scheme for Maxwell's equations in dispersive media with material interfaces in one dimension. We consider media exhibiting orientational polarization, which are represented using a Debye dispersive model, examples of which are water and living tissue....
Resource Type:: Masters Thesis
Full Text:: Technique for Maxwell’s Equations in Complex Heterogeneous Media Abstract approved: Vrushali A. Bokil We

A Vector–Host Model for Coinfection by Barley/Cereal Yellow Dwarf Viruses

Creator:: Leung, Margaret-Rose W.
Abstract:: Barley and cereal yellow dwarf viruses (B/CYDV) are a suite of aphid-vectored pathogens that affect diverse host communities, including economically important crops. Coinfection of a single host by multiple strains of B/CYDV can result in elevated virulence, incidence, and transmission rates. We develop a model for a single host, two...
Resource Type:: Honors College Thesis
Full Text:: was senior year. Special thanks to my advisor and mentor, Vrushali Bokil, for her assistance

Finite Element and Finite Difference Methods for Maxwell’s Equations in Metamaterials

Creator:: Stallcup, Isaac A.
Abstract:: In this thesis, we consider Maxwell's Equations and their numerical discretization using finite difference and finite element methods. We first describe Maxwell's equations in linear dielectrics and then present finite difference and finite element methods for this case. We then describe Maxwell's equations in linear metamaterials using the Lorentz and...
Resource Type:: Honors College Thesis
Full Text:: approved: Vrushali Bokil In this thesis, we consider Maxwell’s Equations and their numerical

The Effect of Temperature on the Survival of Chinook Eggs and Fry

Creator:: Teose, Maarika
Abstract:: Temperature data from above and below the Cougar Dam collected by the U.S. Geological Survey prior to the construction of the temperature control structure was analyzed to determine how the di®ering temperature regimes a®ect the growth and survival of threatened spring- run Chinook salmon. An ARIMA time-series model was used...
Resource Type:: Honors College Thesis
Full Text:: Survival of Chinook Eggs and Fry. Abstract Approved: Edward Waymire Vrushali Bokil ABSTRACT

Operator splitting methods for Maxwell's equations in dispersive media

Creator:: Keefer, Olivia A.
Abstract:: Accurate modeling and simulation of wave propagation in dispersive dielectrics such as water, human tissue and sand, among others, has a variety of applications. For example in medical imaging, electromagnetic waves are used to interrogate human tissue in a non-invasive manner to detect anomalies that could be cancerous. In non-destructive...
Resource Type:: Masters Thesis
Full Text:: for Maxwell’s Equations in Dispersive Media Abstract approved: Vrushali A. Bokil Accurate modeling

Multiscale Methods and Energy Stable Discretizations for Maxwell’s Equations in Linearand Nonlinear Materials

Creator:: Sakkaplangkul, Puttha
Abstract:: In this dissertation, we introduce a family of fully discrete finite difference time-domain (FDTD) methods for Maxwell’s equations in linear and nonlinear materials. Onecategory of methods is constructed using multiscale techniques involving operator splittings. We present the sequential splitting scheme, the Strang Marchuk splitting scheme,the weighted sequential splitting scheme including...
Resource Type:: Dissertation
Full Text:: Abstract approved: Vrushali A. Bokil In this dissertation, we introduce a family of fully discrete finite

Non-spatial and spatial models for multi-host pathogen spread in competing species : applications to barley yellow dwarf virus and rinderpest

Creator:: Manore, Carrie Anna
Abstract:: Modeling and analyzing the combined effects of disease and population dynamics is important in understanding the effects of mechanisms such as pathogen transmission and direct competition between host species on the distribution and abundance of different species in an ecological community. Mathematical analysis of such models in a spatially explicit...
Resource Type:: Dissertation
Full Text:: : Vrushali A. Bokil Modeling and analyzing the combined effects of disease and population dynamics is

Compatible Discretizations for Maxwell's Equations with General Constitutive Laws

Creator:: McGregor, D. A.
Abstract:: In this thesis we construct compatible discretizations of Maxwell's equations. We use the term compatible to describe numerical methods for Maxwell's equations which obey many properties of vector Calculus in a discrete setting. Compatible discretizations preserve the exterior Calculus ensuring that the divergence of the curl and the curl of...
Resource Type:: Dissertation
Full Text:: Discretizations for Maxwell’s Equations with General Constitutive Laws Abstract approved: Vrushali A. Bokil and

ScholarsArchive@OSU

Virtual Element Methods for Magnetohydrodynamics on General Polygonal and Polyhedral Meshes

Analysis of fourth order numerical methods for the simulation of electromagnetic waves in dispersive media

The implicit derivative matching technique for Maxwell's equations in complex heterogeneous media

A Vector–Host Model for Coinfection by Barley/Cereal Yellow Dwarf Viruses

Finite Element and Finite Difference Methods for Maxwell’s Equations in Metamaterials

The Effect of Temperature on the Survival of Chinook Eggs and Fry

Operator splitting methods for Maxwell's equations in dispersive media

Multiscale Methods and Energy Stable Discretizations for Maxwell’s Equations in Linearand Nonlinear Materials

Non-spatial and spatial models for multi-host pathogen spread in competing species : applications to barley yellow dwarf virus and rinderpest

Compatible Discretizations for Maxwell's Equations with General Constitutive Laws

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