Index Catalog // ScholarsArchive@OSU

Process Physics, Strategies and Economics in Metal Additive Manufacturing and Digital Microstructural Control for Energy and Chemical Process Components

Creator:: Manoharan, Sriram
Abstract:: Advances in plant construction within the energy and chemical process industries require inexpensive process intensification (PI) technology as a means to reduce plant size for enabling modular construction. One form of PI is microchannel process technology where arrays of microchannels, having hydraulic diameters on the order of 0.1 to 1...
Resource Type:: Dissertation
Full Text:: manufacturing. My caring parents, Mrs. M. Sumathi and Mr. V. Manoharan, without whom my PhD journey would

Empirical Characterization and Data-Driven Optimization of Water-Energy Systems

Creator:: Elhashimi, Mohammed A.
Abstract:: The accelerated development in water-energy systems calls for advanced modeling and optimization tools to improve technologies’ performance. Water desalination is a manifestation of water-energy system that is challenged by different operational constraints. The scarcity and uneven distribution of freshwater around the world makes water desalination an indispensable process to address...
Resource Type:: Dissertation

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

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:: Appendix A. At each operating condition, the exit velocity of the coflow is roughly 2.3 m/s at the burner

Mechanical Behavior of Elastomer Polymer under Shear and Compression: Experimental Investigation Using Digital Image Correlation

Creator:: Raheem, Hassan M.
Abstract:: Due to their viscoelastic properties, polymers and hydrogels are widely used in many applications. In this study, the viscoelastic properties of elastomer polymers were investigated for a series of hydrogel, hydrogel composites and silicon materials. A primary application for hydrogels and hydrogel composites is as a replacement for the degenerated...
Resource Type:: Dissertation
Full Text:: Hassan Mansour Raheem for the degree of Doctor of Philosophy in Mechanical Engineering presented on July

The Global Consumption Speeds of Premixed Large-Hydrocarbon Fuel/Air Turbulent Bunsen Flames

Creator:: Fillo, Aaron Jesse
Abstract:: Large-hydrocarbon fuels are used for ground and air transportation because of their high energy-density and will be for the foreseeable future. However, combustion of large-hydrocarbon fuels in a turbulent environment is poorly understood and difficult to predict. The turbulent flame speed, which is the velocity at which a flame front...
Resource Type:: Masters Thesis
Full Text:: . . . . . . . . . . . . . . 43 LIST OF SYMBOLS Roman Symbols SL Laminar Flame Speed m/s ST Turbulent Flame Speed m/s ṁ

Effects of Dilution on Turbulent Consumption Speeds of Jet Fuel

Creator:: Walters, Ian
Abstract:: Combustion systems for transportation applications typically use large hydrocarbon fuels in turbulent premixed or partially premixed environments. Combustion products can enter the reaction region through natural recirculation or combustion control mechanisms. The objective of this study is to characterize how dilution by combustion products affects the turbulent consumption speed for...
Resource Type:: Honors College Thesis
Full Text:: approximately 1.3 m upstream of the burner assembly, also shown in Figure 2. The burner was designed by

The effects of ocean variability and breaking waves on wave energy converter reliability and survivability

Creator:: Brown, Adam
Abstract:: The reliability and survivability of a wave energy converter (WEC) is highly dependent on the variability and non-linearity of the ocean itself. Ocean variability occurs on many time scales. Climate variability occurs decade-to-decade, and year-to-year in the number and intensity of winter storms. Seasonal variation of wave height and period...
Resource Type:: Dissertation
Full Text:: and Te for NDBC buoy 46050, located in 128 m water depth, 22 miles off the coast of Newport, Oregon

Modeling and simulation of volume displacement effects in multiphase flow

Creator:: Cihonski, Andrew John
Abstract:: There are many options available when selecting a computational model for two-phase flows. It is important to understand all the features of the model selected, including when the model is appropriate and how using it may affect your results. This work examines how volume displacement effects in two-phase Eulerian-Lagrangian models...
Resource Type:: Dissertation
Full Text:: . . . . . . . . . . 47 4.7 Streamwise mean gas velocity for m = 1, with the coupling and collision method indicated in

Investigation of volumetric coupling effects on particle-laden turbulent flows at dilute to moderate loadings

Creator:: Cihonski, Andrew John
Abstract:: Particle-laden turbulent flows are of great importance in many industrial applications and are sufficiently complex to require multiple methods of study to provide a better understanding of the dominant physical mechanisms present in these processes. This work on large-eddy simulation of particle-laden flows seeks to help provide the building blocks...
Resource Type:: Masters Thesis
Full Text:: m = 1 and St = 70. . . . 67 6.10 Normalized Particle Volume Fraction vs Wall Normal Distance

ScholarsArchive@OSU

Process Physics, Strategies and Economics in Metal Additive Manufacturing and Digital Microstructural Control for Energy and Chemical Process Components

Empirical Characterization and Data-Driven Optimization of Water-Energy Systems

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

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

Mechanical Behavior of Elastomer Polymer under Shear and Compression: Experimental Investigation Using Digital Image Correlation

The Global Consumption Speeds of Premixed Large-Hydrocarbon Fuel/Air Turbulent Bunsen Flames

Effects of Dilution on Turbulent Consumption Speeds of Jet Fuel

The effects of ocean variability and breaking waves on wave energy converter reliability and survivability

Modeling and simulation of volume displacement effects in multiphase flow

Investigation of volumetric coupling effects on particle-laden turbulent flows at dilute to moderate loadings

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