Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"Transition flow"”.
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Transition Flow in Edge Plasmas: Solution of the Two-Fluid Region With Sources
In the context of the transition flow between highly collisional plasma and collisionless sheath, the linearized Fokker-Planck equation for the ions, in an intermediate collisionality region, is generalized to include an arbitrary source function. Nonisentropic effects due to the source function …
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Improvements to the Cheng-Todreas wire-wrapped rod bundle friction factor correlation in response to pin number and in the transition flow region
… fit for the correlation to the data in the transition flow region between turbulent and laminar flow. Although CTD is more accurate than other correlations, it shows an inverse response to changing pin number in some geometries of bundle assemblies. In this thesis, a method is laid out to …
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Integrated Liquid/Steam Multiphase Flow Sensors for Geothermal Applications
… of fiber optic sensors to detect the multiphase flow. The Department of Energy (DOE) is interested in creating steam wells, and the purpose of the research is to determine the capabilities of fiber optic sensors developed by NanoSonic Inc. to operate effectively in the detection of a multiphase …
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Base Flow Recession Analysis for Streamflow and Spring Flow
<p>Base flow recession curve during a dry period is a distinct hydrologic signature of a watershed. The base flow recession analysis for both streamflow and spring flow has been extensively studied in the literature. Studies have shown that the recession behaviors during the early stage and the …
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A new hybrid acquisition scheme for CDMA systems employing short concatenated codes
… Model of the scheme is developed using the state transition flow diagram approach and standard signal flow graph reduction techniques. Expressions for the mean and variance of the acquisition along with the probability of detection are developed. Finally the simplified model is studied in a …
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Numerical Study of Convective Heat Transfer in Flat Tube Heat Exchangers Operating in Self-Sustained Oscillatory Flow Regimes
… of flat tube heat exchanger devices operating in flow regimes in which self-sustained oscillations occur were performed. The unsteady flow regimes were transition flow regimes characterized by cyclic variations of flow parameters such as stream-wise or cross-stream velocity. A computer code was …
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The effects of low aspect ratio and heat exchanging internals on the bubble properties and flow regime in a pilot-plant bubble/slurry bubble column for Fischer-Tropsch synthesis
… enough height to established the fully developed flow regime. As a result of the variation in the bubble properties that in turn reflected on the flow regime transition, therefore, the presence of internals and decreasing the aspect ratio delay the transition from the transition flow regime to …
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Incident shock Mach number effects on Richtmyer-Meshkov mixing with simultaneous density and velocity measurements
… Mach number. Several differences in qualitative flow features are identified as a result of Mach number variation, with differences in vortex interaction playing a critical role in the development of the flow field. Several quantities, including mixing layer width, mixing layer area, interface …
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Numerical and Experimental Studies of Natural Convective Heat Transfer From Vertical and Inclined Narrow Flat Plates and Short Cylinders
… at an angle to the vertical in laminar and transition flow regions with isothermal or constant heat flux conditions have been numerically and experimentally studied. When the width of the plate is relatively small compared to its height, i.e., the plate is narrow, the heat transfer rate can …
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Measurement of Continuum Breakdown Using a Disc Spin-Down Experiment in Low Pressure Air
As flow becomes rarefied, a quantity called as the tangential momentum accommodation coefficient (TMAC) becomes important because it is a measure of the momentum transport from a gas molecule to a surface. Very few experimental measurements of continuum breakdown in boundary layer flows exist. All …
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The characterisation of the hydrodynamic vortex separator using residence time distribution analysis.
… in the sewerage system as a combined sewer overflow (CSO) for the separation of solids from an incoming waste stream. This project presents the first stage in developing and aiding the existing design methodology for the optimisation of kinetic processes within the HDVS. The kinetic process …
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Noncooperative static and dynamic games: addressing shared constraints and phase transitions
… The purpose of this part is to understand phase transition in noncoop- erative dynamic games with a large number of agents. The focus of analysis is on a variation of the large population linear quadratic Gaussian (LQG) model proposed by Huang et. al. 2007 [1], comprised here of a controlled …