19,982 research outputs found

    Recirculation patterns in the initial region of coaxial jets

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    Initial region study of turbulent coaxial jet flo

    Turbulence coefficients and stability studies for the coaxial flow or dissimiliar fluids

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    Analytical investigations of fluid dynamics problems of relevance to the gaseous core nuclear reactor program are presented. The vortex type flow which appears in the nuclear light bulb concept is analyzed along with the fluid flow in the fuel inlet region for the coaxial flow gaseous core nuclear reactor concept. The development of numerical methods for the solution of the Navier-Stokes equations for appropriate geometries is extended to the case of rotating flows and almost completes the gas core program requirements in this area. The investigations demonstrate that the conceptual design of the coaxial flow reactor needs further development

    Experimental investigation of turbulence in the mixing region between coaxial streams

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    Mixing of turbulent, incompressible, coaxial stream

    Experimental investigation of the mixing of two parallel streams of dissimilar fluids

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    Velocity and density profiles in mixing region between adjacent half jets of dissimilar fluid

    Assessment of effects on vegetation of degradation products from alternative fluorocarbons

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    Concern with the effects of fluorides on plants has been devoted to that resulting from dry deposition (mainly with reference to gaseous HF and secondarily with particulate forms). The occurrence of precipitation as rain or mist and the presence of dew or free water on the foliage has mainly been considered with respect to their effects on the accumulation of air-borne fluoride and not with fluoride in wet deposition. That is, precipitation has been viewed primarily with respect to its facilitation of the solution and subsequent absorption of deposits by the foliar tissues or its elution of deposited fluoride from foliage. Accordingly, our evaluation of inorganic fluoride from fluorocarbon degradation rests upon a comparison with what is known about the effects of industrial emissions and what could be considered the natural condition

    Lead telluride bonding and segmentation study Semiannual phase report, Aug. 1, 1967 - Jan. 31, 1968

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    Constitutional studies of SnTe and Si-Ge metal systems, segmented Si-Ge-PdTe thermocouple efficiencies, and pore migration in PbSnTe thermoelement

    Stability of shear flow with density gradient and viscosity

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    Stability of shear flow with density gradient and viscosit

    Measurement of turbulent correlations in a coaxial flow of dissimilar fluids

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    Axial turbulence measurements in coaxial flow of dissimilar gase
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