Index Catalog // ScholarsArchive@OSU

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

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:: fraction for mass flow rates ranging from 100 to 225 g/min and inlet subcooling levels of 0 to 5 °C. The

Experiments on a low aspect ratio wing at low Reynolds numbers

Creator:: Morse, Daniel R.
Abstract:: At the start of the 21st century much of the focus of aircraft design has been turned to unmanned aerial vehicles (UAVs) which generally operate at much lower speeds in higher risk areas than manned aircraft. One subset of UAVs are Micro Air Vehicles (MAVs) which usually are no larger...
Resource Type:: Dissertation
Full Text:: to illustrate the different frequencies observed at the leading edge. c©Copyright by Daniel R

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:: error reported). c©Copyright by Daniel Alan Peterson May 6, 2014 All Rights Reserved Fluidic and

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:: progression c.)Large region of damage ............................................... 16 Figure 2-9: notch

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

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

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

Developing a Methodology to Study the Effects of Adhesive Flow Penetration on Wood Adhesive Bond Performance by using Micro X-ray Computed Tomography (XCT) and Digital Volume Correlation (DVC)

Creator:: Ching, Daniel Jackson
Abstract:: Wood composites are an important renewable structural material which can be a net carbon sink when used in combination with sustainable forest management practices and high rates of log utilization. Adhesive bondlines are an essential part of composites, and for wood composites, they determine the moisture durability and mechanical performance...
Resource Type:: Dissertation
Full Text:: Volume Correlation (DVC) AN ABSTRACT OF THE DISSERTATION OF Daniel Jackson

ScholarsArchive@OSU

Model Predictive Control for Underwater Robots in Ocean Waves

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

Experiments on a low aspect ratio wing at low Reynolds numbers

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

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

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

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

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

Developing a Methodology to Study the Effects of Adhesive Flow Penetration on Wood Adhesive Bond Performance by using Micro X-ray Computed Tomography (XCT) and Digital Volume Correlation (DVC)

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