Index Catalog // ScholarsArchive@OSU

Generalized Preconditioning to Accelerate Simulations with Large Multiphase Chemical Kinetics Models

Creator:: Walker, Anthony S.
Abstract:: Combustion emissions produced from burning real transportation fuels have many environmental impacts. However, detailed chemistry across multiple phases, time scales, and thermodynamic conditions make predicting combustion emissions challenging. Detailed modeling of the gas phase alone is prohibitively expensive, due to the large size and stiffness of the kinetic models. The...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Anthony S

High Temperature Electrical Properties of Ceria-Based Ceramics for Use as Electrodes in Magnetohydrodynamic Power Generators

Creator:: Bowen, Michael S.
Abstract:: Determining the electrical properties of ceria-based materials is important for their use as electrodes in hot-wall magnetohydrodynamic (MHD) power generators with wall temperatures greater than 1500 ̊C. The electrical conductivity of a material can be used in models for predicting the performance of generator designs. More specifically, the temperature dependent...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Michael S. Bowen for

Modeling of Non-Spherical Particle Dynamics in a Non-Uniform Flow

Creator:: Alshehri, Ahmad S.
Abstract:: Turbulent flow with suspended, non-spherical particles can be found in nature and several industrial applications. Although turbulence with dispersed spherical particles has been studied extensively, modeling the dynamics of non-spherical particles in a turbulent flow has not been studied extensively. Motion of spherical particles in complex flows is typically captured...
Resource Type:: Masters Thesis

The Effect of Isothermal Aging on the Development of Long-Range Order in Ni-based Alloys

Creator:: Aerne, Nicholas S. J.
Abstract:: Nickel (Ni)-based alloys with a high chromium (Cr) content are frequently employed in applications where elevated temperatures and/or corrosive environments are present due to their excellent corrosion resistance and mechanical properties. However, a gap exists around the formation, and kinetics of long-range order (LRO) Ni2Cr phase in both model binary...
Resource Type:: Dissertation

Model Predictive Control of a Phase Change Process for Wastewater Purification Application

Creator:: Anderson, Kyle S.
Abstract:: In the United States, the oil and gas extraction industry produces large amounts of highly contaminated wastewater that is seldom treated for reuse in other applications. Current wastewater storage and disposal strategies lead to contamination of valuable freshwater resources that can have negative effects on both human communities and the...
Resource Type:: Masters Thesis
Full Text:: using a 0.3 – 0.6 – 0.9 g/s reference profile without integral action………………………………………………………..29 9a

Fouling Characterization in Hypersaline Wastewater Treatment

Creator:: Messer, Morgan S.
Abstract:: Water supplies are diminishing worldwide and by 2025 two thirds of the population could be living in regions of water scarcity (local demand for water is greater than water supply). One method to increase available water sources is to use desalination technologies to separate water from saline solutions. While desalination...
Resource Type:: Masters Thesis
Full Text:: % KCl saline solutions at different flow rates (2.3-3.1 g/s) to inform system operating parameters

Evaluation of Materials for Use in Open-Cycle Magnetohydrodynamic Power Generation

Creator:: Bowen, Michael S.
Abstract:: Recent interest in oxy-fuel combustion for carbon capture, as well as advancements in technologies such as magnetics, materials, and computational modeling has sparked renewed interest in magnetohydrodynamic (MHD) power generation. The increased temperatures of oxy-fuel combustion versus air-fuel combustion poses a challenge in the selection of materials for plasma exposed...
Resource Type:: Masters Thesis
Full Text:: THE THESIS OF Michael S. Bowen for the degree of Master of Science in Mechanical Engineering

Design Optimization of a Structurally Flexible Wave Energy Converter with a Direct Search Algorithm

Creator:: Berrier, Austin S.
Abstract:: Several wave energy converter designs have been recently proposed that are made of flexible materials. Flexible devices are able to generate electricity by being stretched, and are intended to simplify deployment and maintenance concerns over existing wave energy devices. Due to the relative infancy of flexible wave energy converters, however,...
Resource Type:: Masters Thesis
Full Text:: extra error checking is required to not include ω ≈ 0.94 rad/s as a potential root of f2(ω). This extra

The Structural Characteristics of Robustness in Large-Scale Complex Engineered Systems

Creator:: Walsh, Hannah S.
Abstract:: Modern engineered systems are increasingly integrated into society, decentralized, and interconnected. However, scale and complexity create unique challenges in system design, such as emergent behavior and unintended consequences. This work investigates the structural characteristics of robustness in complex engineered systems by identifying patterns of under-recognized vulnerabilities at various levels of...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Hannah S. Walsh for the

Impacts of Porous Support Geometry on Membrane Performance and Energy Use in the Steam Reforming Process

Creator:: Chamorro, Davis S.
Abstract:: Increasing interest in hydrogen as a clean and efficient energy carrier has driven the need to improve its production and distribution methods. Of particular interest is the natural gas reforming process which currently accounts for 48% of hydrogen production in the United States. Existing natural gas delivery infrastructure and challenges...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Davis S. Chamorro for

ScholarsArchive@OSU

Generalized Preconditioning to Accelerate Simulations with Large Multiphase Chemical Kinetics Models

High Temperature Electrical Properties of Ceria-Based Ceramics for Use as Electrodes in Magnetohydrodynamic Power Generators

Modeling of Non-Spherical Particle Dynamics in a Non-Uniform Flow

The Effect of Isothermal Aging on the Development of Long-Range Order in Ni-based Alloys

Model Predictive Control of a Phase Change Process for Wastewater Purification Application

Fouling Characterization in Hypersaline Wastewater Treatment

Evaluation of Materials for Use in Open-Cycle Magnetohydrodynamic Power Generation

Design Optimization of a Structurally Flexible Wave Energy Converter with a Direct Search Algorithm

The Structural Characteristics of Robustness in Large-Scale Complex Engineered Systems

Impacts of Porous Support Geometry on Membrane Performance and Energy Use in the Steam Reforming Process

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search