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  • An experimental investigation of radiative and total heat transfer around a horizontal tube immersed in a high temperature gas-solid fluidized bed

    Creator:
    Alavizadeh, Seyed Nasser
    Abstract:
    This study is primarily concerned with the measurement of the local radiative component of total heat transfer around a horizontal tube immersed in a large particle fluidized bed at elevated temperatures.Total heat transfer was also measured in order to assess the relative radiation contribution.The radiation measurement probe employs a silicon...
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    Dissertation
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    occur: packed, fluidized, bubbling, and slugging. These stages occur when the friction force acting on

  • Adaptive Multiagent Traffic Management for Autonomous Robotic Systems

    Creator:
    Rebhuhn, Carrie
    Abstract:
    There is growing commercial interest in the use of unmanned aerial vehicles (UAVs) in urban environments, specifically for package delivery applications. However, the size, complexity and sheer numbers of expected UAVs makes conventional air traffic management that relies on human air traffic controllers infeasible. To enable UAVs to safely and...
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    Dissertation
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    edges rather than a single edge. We divide these groups of edges into four cardinal directions, and

  • 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...
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    Dissertation
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    Development of MPM and its Applications in Modeling Wood-Adhesive Bonds by Chad Hammerquist A DISSERTATION

  • Effect of hydrous ethanol on crankcase oil dilution

    Creator:
    Khalifa, Gamaleldin A.
    Abstract:
    Adequate lubrication is of the utmost importance in internal combustion engines. Low temperature operation with low-proof alcohol may create some operational problems if alcohol and or water accumulates in the crankcase oil. Condensates of unburned alcohol and water may be blown into the crankcase oil with blow by gases. The...
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    Dissertation
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    alcohol and water may be blown into the crankcase oil with blowby gases. These condensates may form an

  • Computational Design for Metal Organic Responsive Frameworks (MORFs)

    Creator:
    Manion, Charles A.
    Abstract:
    Metal organic Frameworks (MOFs) that experience stimuli induced structural transformation could enable a whole new class of materials with remarkable properties. Photoactuating moieties in the structure could effect changes in the pore space or macroscale shape change enabling light driven gas separation and actuators. Here, we present a novel approach...
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    each other, and then molecules to link these fragments together are found. One important concept in

  • Knowing your customers : ontological gathering and analysis techniques

    Creator:
    Nix, Anthony A.
    Abstract:
    This research presents a methodology to analyze customer needs and direct the gathering of customer needs that both span the need space and are independent. An ontological categorization, the fundamental research contribution of this work, is created to support both aims of the overall methodology. Providing designers with a customer...
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    Dissertation
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    and dissertation, as well as all of the advice, guidance, lunches, drinks, table saw usage, and

  • Automated Assembly Planning : From CAD Model to Virtual Assembly Process

    Creator:
    Rafibakhsh, Nima
    Abstract:
    Assembly planning is a crucial task for every manufacturing product. In general, assembly operations consume more than 30% of the total manufacturing time and cost. Therefore, any effort in optimizing assembly will have a significant impact on the economic success of manufacturing. Finding an optimal assembly plan by hand is...
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    Dissertation
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    : making individual parts, and assembling these parts into a product. It is often the case that many

  • From Functional Modeling to Optimization : Risk and Safety in the Design Process for Large-Scale Systems

    Creator:
    McIntire, Matthew G.
    Abstract:
    In order to more effectively design large, complex systems, risk must be accounted for throughout the design process. A systematic way to account for risk is by using system model simulation. During the conceptual design phase, functional models can be drawn to help the engineer design their system's functional architecture....
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    Dissertation
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    best times to catch potential failures and anomalies [11]. This dissertation demonstrates as- pects

  • Crack Penetration and Deflection Behavior at Interfaces

    Creator:
    Alam, Mahabub
    Abstract:
    This study computationally and experimentally examines the mechanisms of crack penetration, deflection and the transition between penetration and deflection. The finite element analysis based computational modeling work used strength-and-energy based cohesive-zone approach to study the effect of dimensionless parameters (e.g., interfacial incident angle, fracture-length scale, and normalized toughness) on penetration/deflection...
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    dissertation will examine the effects of incident angles along with length of plastic zone at crack tip and

  • DNS study of Particle-bed-Turbulence Interactions in Oscillatory Flows

    Creator:
    Ghodke, Chaitanya Deepak
    Abstract:
    Turbulent flows over rough surfaces are encountered in many engineering and geophysical applications. Flows of this nature, due to their increasing technological interests, have been a subject of rigorous investigation in recent years. Of the particular interest to the oceanographic community is the study of turbulent oscillatory flow over rough...
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    Dissertation
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    of drag and lift forces on sediment grains, the time-scales associated with these vari- ations, and