Index Catalog // ScholarsArchive@OSU

In-Situ Stereo Vision Metrology for Metal Powder Bed Fusion Additive Manufacturing

Creator:: Mosher, Daniel P.
Abstract:: Powder Bed Fusion (PBF) techniques are additive manufacturing (AM) technologies with paradigm-shifting potential for the production industry. However, before they can become viable production solutions for quality critical industries, issues with process consistency and repeatability need to be addressed. There is a need for in-situ sensing systems that characterize process...
Resource Type:: Dissertation
Full Text:: Daniel P. Mosher for the degree of Doctor of Philosophy in Mechanical Engineering presented on May 25

Experimental Classification of Intralaminar Matrix Compression Damage Propagation in Carbon Fiber Reinforced Polymers

Creator:: Daniels, Mitchell Alan
Abstract:: Composites often are able to carry more load after damage due to the structure of laminates. In addition, damage can be difficult to detect in composites compared to homogeneous materials. Understanding the behavior of composite material after damage is vital for composite structural design. Currently, experimental methods exist for classifying...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________ John P. Parmigiani Composites often are able to carry more load after damage due to the

A technique for spatially resolved wall temperature measurements in microchannel heat sinks using infrared thermography

Creator:: Krebs, Daniel P.
Abstract:: A non-intrusive measurement technique for direct quantitative thermal visualization of channel wall temperatures in two phase microchannel flows using infrared thermography (IRT) is presented. Specifically, the measurement of top channel wall temperatures in a fractal-like branching microchannel silicon heat sink during flow boiling is demonstrated and thoroughly documented. Obtaining quantitative...
Resource Type:: Masters Thesis
Full Text:: FLYLEAF AN ABSTRACT OF THE THESIS OF Daniel P

A study of adiabatic and diabatic flow boiling in parallel microchannels and fractal-like branching microchannels

Creator:: Daniels, Brian J.
Abstract:: A one-dimensional numerical model has been developed to study diabatic and adiabatic flow boiling in microchannels. This model accounts for developing flow effects and variable property effects. The model uses correlations for void fraction and two-phase multipliers found in the literature. The model has been used to study the performance...
Resource Type:: Dissertation
Full Text:: Wall Area PΔ Pressure drop LMC Phase Interaction Parameter q ′′& Wall heat flux D Diameter Re

Fluidic and thermal modeling for the high production rate synthesis of high quality nanoparticles

Creator:: Peterson, Daniel Alan
Abstract:: Advances of colloidal nanomaterials for societal benefit have been hampered by the high cost and low quality of nanoparticles (NPs). The production of high quality nanoparticles within colloidal suspension has two related concerns; (1) current high production rates methods of synthesizing nanoparticles result in a larger range of particle size,...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Daniel Alan Peterson for

Swept time-space domain decomposition on GPUs and heterogeneous computing systems

Creator:: Magee, Daniel J.
Abstract:: Modern scientific and engineering problems often require simulations with a level of resolution difficult to achieve in reasonable amounts of time—even in effectively parallelized programs. Therefore, applications that exploit high performance computing (HPC) systems have become invaluable in academia and industry over the past two decades. Addressing the questions that...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Daniel J. Magee for the

Optimization Across Decomposition : A Multiagent Model of Collaboration in Decomposed System Design

Creator:: Hulse, Daniel E.
Abstract:: Complex engineered systems design is a collaborative activity. To design a system, experts from the relevant disciplines must work together to create the best overall system from their individual components. This situation is analogous to a multiagent system in which agents solve individual parts of a larger problem. Current multiagent...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Daniel E. Hulse for the degree

Making the Unconscious Unconscious : Reclaiming Microinteractions for People with Motor Disabilities

Creator:: Lazewatsky, Daniel A.
Abstract:: Numerous diseases and injuries can limit a person's ability to perform everyday tasks -- things like getting dressed, bathing, and eating. Anything that requires physical activity can be affected; even simple things like turning on the lights can become difficult or impossible. Until recently, the only way for a person...
Resource Type:: Dissertation
Full Text:: Microinteractions for People with Motor Disabilities AN ABSTRACT OF THE DISSERTATION OF Daniel A. Lazewatsky

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:: AN ABSTRACT OF THE THESIS OF Daniel Alan Peterson for the degree of

Model Predictive Control for Underwater Robots in Ocean Waves

Creator:: Fernández, Daniel C.
Abstract:: Underwater robots beneath ocean waves can benefit from feedforward control to reduce position error. This thesis proposes a method using Model Predictive Control (MPC) to predict and counteract future disturbances from an ocean wave field. The MPC state estimator employs a Linear Wave Theory (LWT) solver to approximate the component...
Resource Type:: Masters Thesis
Full Text:: Waves AN ABSTRACT OF THE THESIS OF Daniel C. Fernández for the degree of Master of Science in

ScholarsArchive@OSU

In-Situ Stereo Vision Metrology for Metal Powder Bed Fusion Additive Manufacturing

Experimental Classification of Intralaminar Matrix Compression Damage Propagation in Carbon Fiber Reinforced Polymers

A technique for spatially resolved wall temperature measurements in microchannel heat sinks using infrared thermography

A study of adiabatic and diabatic flow boiling in parallel microchannels and fractal-like branching microchannels

Fluidic and thermal modeling for the high production rate synthesis of high quality nanoparticles

Swept time-space domain decomposition on GPUs and heterogeneous computing systems

Optimization Across Decomposition : A Multiagent Model of Collaboration in Decomposed System Design

Making the Unconscious Unconscious : Reclaiming Microinteractions for People with Motor Disabilities

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

Model Predictive Control for Underwater Robots in Ocean Waves

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