Index Catalog // ScholarsArchive@OSU

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
Full Text:: = 0.5 wing at Rec=1.3x10 4 and across three planes; (a) z/s = 0 (centerline), (b) z/s = 0.5 and (c) z/s

Applications of the thermal wave technique in liquid thermal conductivity measurements and flow field diagnostics

Creator:: Wang, Zhefu
Abstract:: The thermal wave technique has been explored for the use of liquid thermal conductivity measurement and flow property diagnostics in this dissertation. For liquid thermal conductivity measurements, an experimental technique based on the thermal wave approach is developed. A stainless steel strip functions as both a heating element and a...
Resource Type:: Dissertation
Full Text:: component in the y direction, m/s w velocity component in the z direction, m/s x coordinate, m y

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:: to foils so as to mimick motions found in nature. Liu [17] found that leading edge motion improved

Study of creeping, inertial and turbulent flow regimes in porous media using particle image velocimetry

Creator:: Patil, Vishal A.
Abstract:: Porous media flows are encountered in many natural and man-made systems such as gas adsorption, filtration, heat exchangers, combustion, catalytic reactors and groundwater hydrology. This study experimentally investigates these flows as function of pore Reynolds number, Re[subscript pore]. The pore Reynolds number is based on the porous bed hydraulic diameter,...
Resource Type:: Dissertation
Full Text:: .......................................................................................................................... 80 w z ∂ ∂ LIST OF FIGURES (Continued) Figure

The energy extraction performance of an oscillating rigid and flexible foil

Creator:: Totpal, Alexander D.
Abstract:: The aerodynamic performance of an oscillating pitching and plunging foil operating in the energy harvesting mode is investigated. Experiments are conducted in a closed-loop recirculating wind tunnel at Reynolds numbers of 24,000 to 48,000, and reduced frequencies (k = fc/u) of 0.042 to 0.083. Foil kinematics are varied through the...
Resource Type:: Masters Thesis
Full Text:: , Bo Liu, Reza Ziazi, and Pedram Pakseresht. You guys have all played an important part in my life

Further Development of MPM and its Applications in Modeling Wood-Adhesive Bonds

Creator:: Hammerquist, Chad C.
Abstract:: This work is a culmination of a series of published works related to the use of the Material Point Method (MPM) in modeling wood adhesive bonds. The use of wood as construction material has the potential to play a small role in the solution to the current CO2 and climate...
Resource Type:: Dissertation
Full Text:: the united states. Biomass and Bioenergy, 32(1):1 – 10, 2008. [10] X. Zhang, Z. Chen, and Y. Liu. The

Design of a single lamina for a microchannel dialyzer with a focus on bubble removal

Creator:: Mohammadi, Mahshid
Abstract:: A microchannel-based hemodialyzer offers a novel approach to hemodialysis practice and holds many promises for improving dialysis treatment efficiency and quality of life for kidney patients. The hollow fiber hemodialyzer, a conventional dialysis device, has certain limitations including non-uniformity of the dialysate flow path which necessitates the use of a...
Resource Type:: Dissertation
Full Text:: u Velocity t Time tm Membrane thickness w Microchannel width z Longitudinal distance from

On the optimization of performance in fractal-like branching microchannel heat transfer devices

Creator:: Heymann, Douglas Benjamin
Abstract:: Fractal-like branching microchannel flow networks have been found to improve wall temperature uniformity and decrease both pressure drop and flow power compared to arrays of straight microchannels. The present study seeks to maximize the benefits of fractal-like branching channels by means of a gradient-based optimization algorithm. The algorithm identifies the...
Resource Type:: Dissertation
Full Text:: ) X Lockhart-Martinelli Parameter z Vapor quality Greek α Void fraction β Width ratio γ Length

Simulating Soot Formation and Growth using a Parallel Coupled Monte Carlo Method

Creator:: Peters, Jordan
Abstract:: Small hydrocarbon particles such as soot and soot precursors pose a serious threat to human health and Earth's climate. Understanding the mechanisms by which soot particles form and grow is the first step to reducing the prevalence of these particles. Computational simulations are used to investigate combusting systems which are...
Resource Type:: Masters Thesis

Arc distribution and motion during the vacuum arc remelting process as detected with a magnetostatic approach

Creator:: Woodside, Rigel
Abstract:: Currently, the temporal arc distribution across the ingot during the vacuum arc remelting (VAR) process is not a known or monitored parameter. It is has previously been shown that arcs can spatially constrict during VAR, and this constriction can lead to undesired defects in the material. Additionally, correct accounting for...
Resource Type:: Dissertation

ScholarsArchive@OSU

Experiments on a low aspect ratio wing at low Reynolds numbers

Applications of the thermal wave technique in liquid thermal conductivity measurements and flow field diagnostics

Energy Harvesting Performance of a Flapping Foil with Leading Edge Motion

Study of creeping, inertial and turbulent flow regimes in porous media using particle image velocimetry

The energy extraction performance of an oscillating rigid and flexible foil

Further Development of MPM and its Applications in Modeling Wood-Adhesive Bonds

Design of a single lamina for a microchannel dialyzer with a focus on bubble removal

On the optimization of performance in fractal-like branching microchannel heat transfer devices

Simulating Soot Formation and Growth using a Parallel Coupled Monte Carlo Method

Arc distribution and motion during the vacuum arc remelting process as detected with a magnetostatic approach

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