Index Catalog // ScholarsArchive@OSU

A study of thermal stratification in the cold legs during the subcooled blowdown phase of a loss of coolant accident in the OSU APEX Thermal Hydraulic Testing Facility

Creator:: Wachs, Daniel M.
Abstract:: The phenomena of interest in this work is the thermal stratification which occurs during the early stages of a loss of coolant accident (LOCA) in the OSU APEX Thermal Hydraulic Test Facility, which is a scaled model of the Westinghouse AP600 nuclear power plant. Thermal stratification has been linked to...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Daniel M. Wachs for the degree of Masters of Science in Nuclear

Describing Tsunami Inundation and Debris Motion using Optical Measurement Methods in a Large-Scale Wave Basin

Creator:: Rueben, Matthew Robert
Abstract:: This thesis consists of two papers in manuscript format. The first paper presents optical measurements of tsunami inundation through an urban waterfront in a laboratory wave basin. The physical model was constructed at 1:50 scale and was an idealization of the town of Seaside, Oregon. The paper presents an analysis...
Resource Type:: Honors College Thesis
Full Text:: : ______________________________________________________ Daniel Cox This thesis consists of two papers in manuscript format. 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

Hybrid Statistical and Engineering Optimization Architectures in Early Multidisciplinary Designs of Resilience and Expensive Black-box Complex Systems

Creator:: Biswas, Arpan
Abstract:: Practical engineering design problems are generally multi-disciplinary with limited budget and high risk in terms of life loss, economic resources, etc. In the early phase of such problems, selection of true efficient designs is desired while minimizing overall design cost by avoiding expensive search processes. However, the task is difficult...
Resource Type:: Dissertation
Full Text:: Architectures for Integrated Resilience Optimization. Co-authors: Daniel Hulse, Christopher Hoyle, Irem Y

Dynamic measurement of Timoshenko beam shear coefficient

Creator:: Nelson, Daniel Loren
Abstract:: The Timoshenko beam theory, as an engineering alternative to the elementary and exact theories, introduces a factor, k', called the shear coefficient which has been given various interpretations and values. It is the objective of this study to experimentally evaluate k' for a brass bar of rectangular cross-section. Analytical results...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF DANIEL LOREN NELSON for the M. S. (Name) (Degree) in MECHANICAL

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

Power performance of planing boats with the effect of propeller selection and propeller guard design

Creator:: Ladd, Daniel M.
Abstract:: One of the unique problems associated with salmon gillnet fishing is of preventing the fouling of the boat's propeller in the net and associated fishing gear. Presently, the solution to this problem has been the addition of a basket type propeller guard which may produce a drag increase of 50...
Resource Type:: Masters Thesis
Full Text:: speed c - distance between line of action of N and CG A = N cos T + T sin(T +E ) - Df sin T For

Effects of Channel and Ratchet Geometry on Passive Pumping in an Open-ended channel Configuration

Creator:: Daniels, Mitchell A.
Abstract:: Modern electronics have created increased demand for innovative cooling solutions. Typical forced convective cooling systems consist of pumps that circulate cooling fluid. However pumps can be unwieldy for many applications. This research is a continuation of work done at Oregon State University and Auburn University on the passive pumping of...
Resource Type:: Honors College Thesis
Full Text:: Figure 15: a.) Original image taken from a frame of an avi file. b.) Applying image mask. c.) Apply

A study of the characteristics of oscillatory surface instabilities leading to droplet formation

Creator:: Daniels, Brian J.
Abstract:: The characteristics of the free surface in an orifice driven by a periodic forcing function have been studied both theoretically and experimentally. In the theoretical study, two wall boundary condition cases were examined: 1) the radial velocity at the wall of the orifice is zero; and 2) the axial velocity...
Resource Type:: Masters Thesis
Full Text:: ; 51Horizontal Pixel Numbers a) 500, b) 650, and c) 800 10 Detail View of Intensity Profiles of Pixel Columns in

ScholarsArchive@OSU

A study of thermal stratification in the cold legs during the subcooled blowdown phase of a loss of coolant accident in the OSU APEX Thermal Hydraulic Testing Facility

Describing Tsunami Inundation and Debris Motion using Optical Measurement Methods in a Large-Scale Wave Basin

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

Hybrid Statistical and Engineering Optimization Architectures in Early Multidisciplinary Designs of Resilience and Expensive Black-box Complex Systems

Dynamic measurement of Timoshenko beam shear coefficient

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

Power performance of planing boats with the effect of propeller selection and propeller guard design

Effects of Channel and Ratchet Geometry on Passive Pumping in an Open-ended channel Configuration

A study of the characteristics of oscillatory surface instabilities leading to droplet formation

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