Index Catalog // ScholarsArchive@OSU

Detection and analysis of separated flow induced vortical structures

Creator:: Snider, Stephen David Louis
Abstract:: Flow separation is an important phenomenon in fluid dynamics because of the effect it has on lift and drag on immersed bodies. Areas of swirl within a separated flow region may have a distinct effect on the surface forces, modifying the lift and drag characteristics. A correlation between the passage...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Stephen David Louis Snider for

Materials and process design for powder injection molding of silicon nitride for the fabrication of engine components

Creator:: Lenz, Juergen H. (Juergen Herbert)
Abstract:: A new material system was developed for fabricating the combustion engine of an unmanned aerial vehicle. The material system consisted of a mixture of nanoscale and microscale particles of silicon nitride. Magnesia and yttria were used as sintering additives. The powders were mixed with a paraﬃn binder system. The binder-powder...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Sundar V. Atre A new material system was developed for fabricating the combustion

Numerical simulation of micro/mini-channel based methane-steam reformer

Creator:: Peterson, Daniel Alan
Abstract:: Numerical modeling of methane-steam reforming is performed in a micro/mini-channel with heat input through catalytic channel walls. The low-Mach number, variable density Navier-Stokes equations together with multicomponent reactions are solved using a parallel numerical framework. Methane-steam reforming is modeled by three reduced-order reactions occurring on the reactor walls. The surface...
Resource Type:: Masters Thesis
Full Text:: Micro/Mini-Channel based Methane-Steam Reformer Abstract approved: Sourabh V. Apte Numerical modeling

Fabrication of precipitation-hardened aluminum microchannel cooling plates for adsorption-based hydrogen storage systems

Creator:: Pawar, Supriya V.
Abstract:: The need for clean and renewable fuel such as hydrogen is driven by a growing worldwide population and increasing air pollution from fossil fuels. One of the major barriers for the use of hydrogen in automotive industry is the storage of hydrogen. Physisorption is the most promising storage technique due...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Supriya V. Pawar, for the

Combustion Characteristics of a Jet Fuel and its Surrogate in MILD Conditions

Creator:: Weide, Parker D.
Abstract:: This research seeks to identify how changes in temperature and oxygen concentration in the reaction zone affects liftoff heights for moderate or intense low-oxygen dilution (MILD) combustion of a jet fuel and a surrogate fuel. MILD combustion offers a method of burning fuels with reduced CO and NOx production by...
Resource Type:: Masters Thesis
Full Text:: Characteristics of a Jet Fuel and its Surrogate in MILD Conditions Abstract approved: David L. Blunck This

Vortex Generator Flow Control for an Upper-Surface Blown Aircraft Wing with an Extended Coanda Flap

Creator:: Kelly, Bryan R.
Abstract:: Integrated Distributed Electric Augmented Lift (IDEAL) applies upper-surface blowing in a novel way using an array of electric ducted fans (EDFs) to achieve electric short take-off and landing to meet the growing need for urban air transportation. Additional research on the use of vortex generators (VGs) to reduce flow separation...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: ______________________________________________________ David G. Ullman

RANS and LES predictions of turbulent scalar transport in dead zones of natural streams

Creator:: Drost, Kevin J.
Abstract:: Natural stream systems contain a variety of ﬂow geometries which contain ﬂow separation, turbulent shear layers, and recirculation zones. This work focuses on streams with dead zones. Characterized by slower ﬂow and recirculation, dead zones are naturally occurring cutouts in stream banks. These dead zones play an important role in...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Sourabh V. Apte Roy Haggerty Natural stream systems contain a variety of flow

Numerical study of flow maldistribution in microchannels using fully resolved simulation

Creator:: Martin, Mathieu Georges Charles
Abstract:: This thesis addresses numerical simulation of flow maldistribution in microchannels. Microchannels are often associated with two phase-flows which can generate many problems such as plugging the channel or perturbing the flow. In this study we have used CFD and fully resolved technique to simulate what would happen in the case...
Resource Type:: Masters Thesis
Full Text:: : Sourabh V. Apte This thesis addresses numerical simulation of flow maldistribution in microchannels

CFD simulation of single-phase and flow boiling in confined jet impingement with in-situ vapor extraction using two kinds of multiphase models

Creator:: He, Xiaoliang
Abstract:: With continued development of the electronic industry, the demand for highly efficient heat removal solutions requires innovative cooling technologies. A computational fluid dynamic (CFD) study, including heat transfer, is performed for an axisymmetric, confined jet impingement experiencing boiling and coupled with vapor extraction. Boiling occurs at the target surface while...
Resource Type:: Masters Thesis
Full Text:: Deborah V. Pence With continued development of the electronic industry, the demand for highly

On the Euler-Lagrange Modeling of Particle-laden Turbulent Flows

Creator:: Pakseresht, Pedram
Abstract:: Particle-laden turbulent flows, wherein a large number of small size particles are dispersed in a fluid, are widely encountered in environmental and industrial applications. Understanding their underlying physics, making predictions without performing expensive experiments, and ultimately optimizing the systems carrying such flows, require accurate and robust modelling tools. The Euler-Lagrange...
Resource Type:: Dissertation
Full Text:: Euler-Lagrange Modeling of Particle-laden Turbulent Flows Abstract approved: Sourabh V. Apte Particle

ScholarsArchive@OSU

Detection and analysis of separated flow induced vortical structures

Materials and process design for powder injection molding of silicon nitride for the fabrication of engine components

Numerical simulation of micro/mini-channel based methane-steam reformer

Fabrication of precipitation-hardened aluminum microchannel cooling plates for adsorption-based hydrogen storage systems

Combustion Characteristics of a Jet Fuel and its Surrogate in MILD Conditions

Vortex Generator Flow Control for an Upper-Surface Blown Aircraft Wing with an Extended Coanda Flap

RANS and LES predictions of turbulent scalar transport in dead zones of natural streams

Numerical study of flow maldistribution in microchannels using fully resolved simulation

CFD simulation of single-phase and flow boiling in confined jet impingement with in-situ vapor extraction using two kinds of multiphase models

On the Euler-Lagrange Modeling of Particle-laden Turbulent Flows

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