Index Catalog // ScholarsArchive@OSU

Generalized Preconditioning to Accelerate Simulations with Large Multiphase Chemical Kinetics Models

Creator:: Walker, Anthony S.
Abstract:: Combustion emissions produced from burning real transportation fuels have many environmental impacts. However, detailed chemistry across multiple phases, time scales, and thermodynamic conditions make predicting combustion emissions challenging. Detailed modeling of the gas phase alone is prohibitively expensive, due to the large size and stiffness of the kinetic models. The...
Resource Type:: Dissertation

Numerical Analysis of Experimental Impacts on Wind Turbine Blades

Creator:: Fleiger-Holmes, Kahlan
Abstract:: Wind energy is one of the fastest growing renewable forms of energy in the United States and the world. However, interactions between wind turbines and wildlife have the possibility to injure animals such as birds and bats. Strategies to assess and minimize wind turbine interactions with wildlife are critical for...
Resource Type:: Honors College Thesis

Multi-modal sensing data fusion for machining and additive manufacturing

Creator:: Fu, Xianzhe
Abstract:: With the increased demand for high-quality products, reliable and robust process monitoring has become a key capability for modern manufacturing systems. Through sensors installed in the machinery, the real-time information was measured to assess the state of the processes. The measured data can be used to infer the mechanical, material,...
Resource Type:: Dissertation
Full Text:: Technology, 20, 561-571. 7 [17] Gorgannejad, S., Martin, A. A., Nicolino, J. W., Strantza, M

Development and validation of acoustic measurement techniques for void fraction in concentric annular geometries

Creator:: Tost, Brian C.
Abstract:: This work investigates the acoustic velocity of gas-liquid mixtures in vertical, co-current flow in a concentric annulus. Acoustic velocity shows promise as a detection parameter for the presence and amount of gas in a liquid flow because of its high sensitivity to gas void fraction in a gas-liquid mixture. However,...
Resource Type:: Dissertation

Generalized Chip Formation and Thermal Dynamics of Modulated Turning

Creator:: Ozdemir, Mert
Abstract:: Modulation assistance is widely employed to improve chip management in turning. This process is also known as modulated turning. Modulated turning transforms continuous cutting into intermittent cutting by periodically disengaging the tool tip from the workpiece, resulting in the generation of short, easily managed chips. This novel method improves the...
Resource Type:: Masters Thesis

LPBF and Post Processing of H13 Tool Steel

Creator:: Alabdulali, Ali
Abstract:: Laser powder bed fusion (LPBF) is an innovative method where metal powder is fused together to generate complex geometries. LPBF is used as a technology to reduce material waste, and extensive labor that are often linked to conventional subtractive manufacturing. H13 tool steel is one of the widely used materials...
Resource Type:: Masters Thesis
Date Created:: 2023-08-31
Full Text:: , Tanisha, John V. Kennedy, and Johan Potgieter. "A comparison of traditional manufacturing vs additive

The Mira 2 Rocket Engine: Applying Lessons Learned for an Improved Iteration

Creator:: Dimas-Harms, Colton R.
Abstract:: In this paper, I present the design of Mira 2, a small-scale, liquid bipropellant rocket engine, with a specific focus on its oxidizer-centered pintle injector. Building upon the valuable lessons and insights gained from the empirical testing of its predecessor, Mira 1, the Mira 2 engine incorporates several improvements and...
Resource Type:: Capstone Project

Experimental Study of the Impact of Physical and Chemical Properties on Smoldering Combustion in Natural Fuels

Creator:: Smucker, Benjamin
Abstract:: Smoldering combustion in wildland fires is difficult to extinguish, can transition to flaming combustion, and produces a significant amount of pollutants. It is necessary to understand parameters controlling smoldering in order to help predict the smoldering behavior and potentially mitigate these hazards. The wide variety of natural fuels that occur...
Resource Type:: Dissertation

Probabilistic Wind Power Forecasting for Hybrid Systems

Creator:: Irmas, Cameron
Abstract:: Wind power forecasting provides valuable insights for demand response, energy market operation, and plant control optimization. Probabilistic approaches—which capture uncertainty in these complex systems by representing predictions as probability distributions—represent a growing area of research in wind energy science. However, their applications for wind-based hybrid systems, particularly those focused on...
Resource Type:: Masters Thesis
Full Text:: 10.0 12.5 15.0 17.5 20.0 W in d sp ee d (m /s ) Forecast Train/Test Split train test

The Effect of Isothermal Aging on the Development of Long-Range Order in Ni-based Alloys

Creator:: Aerne, Nicholas S. J.
Abstract:: Nickel (Ni)-based alloys with a high chromium (Cr) content are frequently employed in applications where elevated temperatures and/or corrosive environments are present due to their excellent corrosion resistance and mechanical properties. However, a gap exists around the formation, and kinetics of long-range order (LRO) Ni2Cr phase in both model binary...
Resource Type:: Dissertation
Full Text:: techniques alongside numerous discussions of x-ray diffraction. The committee members Dr. John Parmigiani

ScholarsArchive@OSU

Generalized Preconditioning to Accelerate Simulations with Large Multiphase Chemical Kinetics Models

Numerical Analysis of Experimental Impacts on Wind Turbine Blades

Multi-modal sensing data fusion for machining and additive manufacturing

Development and validation of acoustic measurement techniques for void fraction in concentric annular geometries

Generalized Chip Formation and Thermal Dynamics of Modulated Turning

LPBF and Post Processing of H13 Tool Steel

The Mira 2 Rocket Engine: Applying Lessons Learned for an Improved Iteration

Experimental Study of the Impact of Physical and Chemical Properties on Smoldering Combustion in Natural Fuels

Probabilistic Wind Power Forecasting for Hybrid Systems

The Effect of Isothermal Aging on the Development of Long-Range Order in Ni-based Alloys

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