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Filtering by: Creator Keller%2C Aimee A. Remove constraint Creator: Keller%2C Aimee A. Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering

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  • Significance of High-Pressure-Torsion Processing on an Aluminum-Lithium Aerospace Alloy

    Creator:
    Keller, Marina
    Abstract:
    Aluminum alloys are popular in aerospace and automotive industries because of their relatively high strength-to-weight ratio. The study of enhancing aluminum’s mechanical properties through grain refinement is especially important. One such technique is High-Pressure Torsion processing (HPT), which leads to significant grain size refinement and enhances mechanical properties like ductility...
    Resource Type:
    Honors College Thesis
    Full Text:
    Processing on an Aluminum-Lithium Aerospace Alloy by Marina Keller A THESIS submitted to Oregon State

  • 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
    Full Text:
    Niemeyer In this paper, I present the design of Mira 2, a small-scale, liquid bipropellant rocket engine

  • A study of the characteristics of oscillatory surface instabilities leading to droplet formation

    Creator:
    Daniels, Brian J.
    Abstract:
    The characteristics of the free surface in an orifice driven by a periodic forcing function have been studied both theoretically and experimentally. In the theoretical study, two wall boundary condition cases were examined: 1) the radial velocity at the wall of the orifice is zero; and 2) the axial velocity...
    Resource Type:
    Masters Thesis
    Full Text:
    A study of the characteristics of oscillatory surface

  • 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:
    ABSTRACT OF THE DISSERTATION OF Vishal A. Patil for the degree of Doctor of Philosophy in

  • Portland Cement Mortars and their Constitutent Materials

    Creator:
    Clark, Roy Ross and Luse, Fred Deininger
    Abstract:
    The rapid advance of concrete engineering in the West has made necessary reliable information as to the strength qualities of the most important marketable, sands In the eastern states, theory and practice have advanced hand in hand, by the investigation of the constituent materials of concrete. In the West, no...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    "standard. Sand" comes from the St.Pei-er forration at OttawalIll.,an:. it is sifted to a 2C-7C,Iesh an

  • Micro-bubble dynamics in two-phase flow through a micro-channel

    Creator:
    Shepard, Thomas G.
    Abstract:
    An experimental investigation into the behavior of micro-bubbles flowing through a micro-channel has been conducted. Experiments were performed within a rectangular micro-channel with dimensions of 5 cm x 13.2 mm x l30 jim. Bubbles were generated in an electrolyte solution by electrolysis at the lower channel wall near the inlet....
    Resource Type:
    Masters Thesis
    Full Text:
    Dynamics in Two-Phase Flow Through a Micro-channel. Abstract approved: James A. Liburdy An experimental

  • A numerical study of solid fuel combustion in a moving bed

    Creator:
    Ko, Daekwun
    Abstract:
    Coal continues to be burned by direct combustion in packed or moving bed in small size domestic furnaces, medium size industrial furnaces, as well as small power stations. Recent stringent restrictions on exhaust emissions call for a better understanding of the process of combustion of coal in beds. The present...
    Resource Type:
    Dissertation
    Full Text:
    A numerical study of solid fuel combustion in a moving bed

  • Heat transfer during the piston-cylinder expansion of a gas

    Creator:
    Rodrigues, Matthew Jose
    Abstract:
    The expansion of a gas within a piston-cylinder arrangement is studied in order to obtain a better understanding of the heat transfer which occurs during this process. While the situation of heat transfer during the expansion of a gas has received considerable attention, the process is still not very well...
    Resource Type:
    Masters Thesis
    Full Text:
    Heat Transfer During the Piston-Cylinder Expansion of a Gas

  • Detecting fluid flows with bioinspired hair sensors

    Creator:
    Dickinson, Benjamin T.
    Abstract:
    Many animals detect prey or enhance their locomotion with information from hair-like receptors that are activated by local fluid flows. The utility of biological hair receptors has motivated the design of artificial hair sensors (AHS) for flow control applications where aerodynamic or hydrodynamic forces play a significant role in the...
    Resource Type:
    Dissertation
    Full Text:
    : Detecting Fluid Flows with Bioinspired Hair Sensors Abstract approved: Belinda A. Batten Many animals

  • Effect of Active Trailing Edge Motion Upon Airfoil Energy Harvester

    Creator:
    Strahl, Jordan D.
    Abstract:
    The application of a flapping foil with prescribed trailing edge motion to energy harvesting in a low reduced frequency (k = fc/U∞) regime was experimentally studied. The effects of the phase and amplitude of the applied trailing edge motion upon time-variant power extraction capability have been measured and are interpreted....
    Resource Type:
    Masters Thesis
    Full Text:
    The application of a flapping foil with prescribed trailing edge motion to energy harvesting in a low