Index Catalog // ScholarsArchive@OSU

An experimental investigation of laminar natural convection with a uniformly heated vertical cylinder in mercury

Creator:: Wiles, Lawrence E.
Resource Type:: Masters Thesis
Full Text:: UNIFORMLY HEATED VERTICAL CYLINDER N MERcUU Redacted for privacy Dr. 'J. R. Welty An experimental

Computer model for estimating cogeneration system performance and economic feasibility

Creator:: Simonds, John E.
Abstract:: Cogeneration is the simultaneous generation and use of both electricity (or mechanical power) and thermal energy from a single fuel source. It is a technology that has been used for years by industries, commercial institutions, and municipalities that need both heat and electrical power. An analytical approach has been developed...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF John E. Simonds for the degree of

Optimization & Qualification of a Liquid Engine Launch Vehicle Design Using 6DoF Simulations

Creator:: Rose, Trevor J.
Abstract:: In this work, I developed a six degree of freedom flight simulator specific to liquid engine launch vehicles. This flight simulator improves upon available software by accounting for liquid engine specific phenomena such as tank pressurization, liquid engine performance, and center of gravity modeling. Additionally, I implemented methods for optimization...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Trevor J. Rose for the

Assessing Mass Diffusion Modeling in Premixed Flames

Creator:: Fillo, Aaron J.
Abstract:: Implementing multicomponent diffusion in numerical combustion studies is computationally expensive due to the challenges involved in computing diffusion coefficients. As a result, mixture-averaged diffusion treatments or simpler methods are used to avoid these costs. However, the accuracy and appropriateness of the mixture-averaged diffusion model has not been verified for three-dimensional...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Aaron J. Fillo for

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

An Improved Chemical Kinetic Model Reduction in pyMARS for Liquid Propellants

Creator:: Moore, Cailin J.
Abstract:: The aerospace industry uses chemical kinetic models when designing propulsion systems to acquire specific details about the rate of chemical reactions, heat release, and combustion stability. These models, however, are too large and stiff to be useful as they can take weeks to run computations on. The pyMARS python package...
Resource Type:: Honors College Thesis
Full Text:: : 10.1016/j.combustflame.2006.04.017. [7] K. E. Niemeyer and C.-J. Sung. “On the importance of graph search

An approach to reduced-order modeling and feedback control for wave energy converters

Creator:: Shoori J., Hesam E.
Abstract:: Wave energy holds great promise to be part of the alternative energy portfolio that will provide independence from fossil fuels. As wave energy converter (WEC) technologies mature, designing effective control strategies to extract maximum energy, extend device life, coordinate WEC operation within an array, or mitigate negative impacts of a...
Resource Type:: Masters Thesis
Full Text:: Control For Wave Energy Converters AN ABSTRACT OF THE THESIS OF Hesam E. Shoori J. for the degree of

Experimental studies of a partially defluidized bed with immersed heat exchange tubes

Creator:: Sitthiphong, Norkun
Abstract:: The object of this research study is to investigate and provide some fundamental information about bed slumping in a partially defluidized bed combustor. Due to the difficulty in making measurements and observations at high temperature, a dynamically similar cold phase fluidized bed was used to model the high temperature case....
Resource Type:: Dissertation
Full Text:: technology, to Dr. Robert E. Wilson, Dr. Gordon M. Reistad for their advice and guidance in my graduate

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
Full Text:: Models Abstract approved: Kyle E. Niemeyer Combustion emissions produced from burning real

Robustness of uncertain systems : globally optimal Lyapunov function

Creator:: Ahmadkhanlou, Fariborz
Abstract:: The Lyapunov direct method is utilized to determine the robustness bounds for nonlinear, time-variant uncertainies p[subscript i]. Determination of the robustness bounds consists of two principal steps: (i) generation of a Lyapunov function and (ii) determination of the bounds based on the generated Lyapunov function. Presently in robustness investigations, a...
Resource Type:: Dissertation
Full Text:: true: i) E Pi < 1 1=1 02 ii) E I Pi I orra,c(Si) < 1, iii) I Pj I < j=1,2 q amaxE I Si I) 1=1

ScholarsArchive@OSU

An experimental investigation of laminar natural convection with a uniformly heated vertical cylinder in mercury

Computer model for estimating cogeneration system performance and economic feasibility

Optimization & Qualification of a Liquid Engine Launch Vehicle Design Using 6DoF Simulations

Assessing Mass Diffusion Modeling in Premixed Flames

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

An Improved Chemical Kinetic Model Reduction in pyMARS for Liquid Propellants

An approach to reduced-order modeling and feedback control for wave energy converters

Experimental studies of a partially defluidized bed with immersed heat exchange tubes

Generalized Preconditioning to Accelerate Simulations with Large Multiphase Chemical Kinetics Models

Robustness of uncertain systems : globally optimal Lyapunov function

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