Index Catalog // ScholarsArchive@OSU

Study of Energy Harvesting Performance of Oscillating Airfoils using a Discrete Vortex Model

Creator:: Kamrani Fard, Kiana
Abstract:: The energy harvesting performance of oscillating airfoils is studied using a discrete vortex model (DVM) with a leading-edge separation criterion. The airfoil undergoes a combined sinusoidal heaving and pitching motion at reduced frequencies of k = 0.06 − 0.16, with heaving amplitude of h0 = 0.5c, and pitching amplitude of...
Resource Type:: Dissertation

Drilling process evaluation by predicting drilled hole quality and drill bit wear with on-line acoustic emission signals

Creator:: Wang, Kuang-Jen, 1962-
Abstract:: Improvement of manufacturing productivity is dependent on the successful automation of manufacturing processes, the success of which is based in turn upon the availability of information which describes the state of manufacturing operations. Acoustic Emission (AE) signals related to the cutting process and tool wear have been recently applied to...
Resource Type:: Dissertation

Dynamic modeling of a refrigerant boiler for power applications

Creator:: Curry, Thomas Haitsch
Abstract:: A dynamic model of a refrigerant boiler has been produced by the use of distributed parameter modeling techniques. A number of elementary cases were studied and were used as an aid in the final model formulation. Modeling using distributed parameters employed the use of mesh equations which were then reorganized...
Resource Type:: Masters Thesis
Full Text:: at ify(4)60 + fs(4) I s dS + I v dV at {fv(pe)dV} + fs(pe) 1.7 e = -Is; dS + fvq"dV + f (.7 1)ds

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

An experimental study of the acoustical characteristics of dampers in air conditioning systems

Creator:: Yun, Kyung Woo
Abstract:: The noise problem in air conditioning systems is receiving ever increasing attention because of the importance of noise on a comfortable human environment. Some work has been done on the solutions to the noise problem by an investigation of a few system elements. The acourstical characteristics of dampers become more...
Resource Type:: Masters Thesis

Energy Harvesting Performance of a Flapping Foil with Leading Edge Motion

Creator:: Prier, Michael W.
Abstract:: Force data for a flapping foil energy harvester with active leading edge motion operating in the low reduced frequency range is collected to determine how leading edge motion affects energy harvesting performance. The foil pivots about the midchord and operates in the low reduced frequency range of 0.06, 0.08, and...
Resource Type:: Masters Thesis
Full Text:: force acts at the leading edge in the chord-wise direction contributing to the lift [31]. Fs = ρπU 2

Flight Characterization of Small Scale UAV

Creator:: Scheer, Jacob
Abstract:: The purpose of this thesis was to understand the relation between the actual performance and the design performance of the manufacturing plane which was designed for the 2016 Design/Build/Fly competition. The actual performance was determined using an Arduino Uno based system with data from an accelerometer, gyroscope and pitot tube....
Resource Type:: Honors College Thesis

Creep studies on Pheasant, Narcissus and Chukar aluminum conductors

Creator:: Patton, John Dennis
Abstract:: This thesis is an engineering report on the creep behavior of power transmission line conductors. Laboratory creep test results are reported for Pheasant, Narcissus and Chukar conductors. The report follows a standard nomenclature and format suggested by the International Study Committee No. 6 of Conference Internationale des Grands Reseaux Electriques...
Resource Type:: Masters Thesis

Unmanned Aerial Vehicle Propulsion

Creator:: Brown, Sean
Abstract:: There is a growing US interest in UAVs for many applications ranging from agriculture to military. One area of improvement that can be realized in each category is propulsion. Engines with greater efficiency would result in longer mission duration, leading to cost savings and increased usefulness for UAV owners and...
Resource Type:: Honors College Thesis

Linearized model for wind turbines in yaw

Creator:: Chaiyapinunt, Somsak
Abstract:: The analysis of rigid hub, three-bladed horizontal-axis, axisymmetric wind turbines in yaw is made using a linearized, four-degree-of-freedom model. The linearized equations of motion of rotor and nacelle are developed using quasi-steady blade element theory and Lagrange's equations. The yaw behavior of the system is studied from coefficients of the...
Resource Type:: Dissertation

ScholarsArchive@OSU

Study of Energy Harvesting Performance of Oscillating Airfoils using a Discrete Vortex Model

Drilling process evaluation by predicting drilled hole quality and drill bit wear with on-line acoustic emission signals

Dynamic modeling of a refrigerant boiler for power applications

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

An experimental study of the acoustical characteristics of dampers in air conditioning systems

Energy Harvesting Performance of a Flapping Foil with Leading Edge Motion

Flight Characterization of Small Scale UAV

Creep studies on Pheasant, Narcissus and Chukar aluminum conductors

Unmanned Aerial Vehicle Propulsion

Linearized model for wind turbines in yaw

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