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    Quantitative Definition of Spray Edge With Extinction Diagnostics and Evaluation of Attenuation Coefficient for Liquid Jets in Supersonic Crossflow

    Source: Journal of Engineering for Gas Turbines and Power:;2024:;volume( 146 ):;issue: 006::page 61014-1
    Author:
    McKelvy, Aubrey J.
    ,
    Braun, James
    ,
    Paniagua, Guillermo
    ,
    Andre, Thierry
    ,
    Choquet, Etienne
    ,
    Falempin, Francois
    DOI: 10.1115/1.4063887
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: A quantifiable, reproducible, and repeatable definition of the three-dimensional spray width and depth for a canonical jet in an open-source supersonic crossflow is presented. An expanding Mach 2 dry-air crossflow is generated through a converging-diverging nozzle with a 25.4 mm by 230 mm wide throat area. A one-millimeter injector with ethanol seeding provides the liquid injection. Injector characteristics and losses are quantified through a calibrated cavitating venturi. Momentum flux ratios ranged from 0.1 to 20, and Reynolds number scaled by the injector diameter ranged from 5000 to 40,000. A shadowgraph setup with a telecentric lens provides uniform magnification for precise and repeatable measurements from injection to 150 mm downstream of the jet. A Phantom v2012 camera with a frame rate of 20 kHz and shutter time of 285 ns was employed. Light transmittance is defined and calculated for each image pixel with a ratio method paired with no-spray images collected immediately before injection. These values are then related to an attenuation coefficient by incorporating spray width profiles collected with cross-sectional Mie-scatter imaging at multiple axial locations with a burst mode laser.
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      Quantitative Definition of Spray Edge With Extinction Diagnostics and Evaluation of Attenuation Coefficient for Liquid Jets in Supersonic Crossflow

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4302895
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    • Journal of Engineering for Gas Turbines and Power

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    contributor authorMcKelvy, Aubrey J.
    contributor authorBraun, James
    contributor authorPaniagua, Guillermo
    contributor authorAndre, Thierry
    contributor authorChoquet, Etienne
    contributor authorFalempin, Francois
    date accessioned2024-12-24T18:52:05Z
    date available2024-12-24T18:52:05Z
    date copyright1/4/2024 12:00:00 AM
    date issued2024
    identifier issn0742-4795
    identifier othergtp_146_06_061014.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4302895
    description abstractA quantifiable, reproducible, and repeatable definition of the three-dimensional spray width and depth for a canonical jet in an open-source supersonic crossflow is presented. An expanding Mach 2 dry-air crossflow is generated through a converging-diverging nozzle with a 25.4 mm by 230 mm wide throat area. A one-millimeter injector with ethanol seeding provides the liquid injection. Injector characteristics and losses are quantified through a calibrated cavitating venturi. Momentum flux ratios ranged from 0.1 to 20, and Reynolds number scaled by the injector diameter ranged from 5000 to 40,000. A shadowgraph setup with a telecentric lens provides uniform magnification for precise and repeatable measurements from injection to 150 mm downstream of the jet. A Phantom v2012 camera with a frame rate of 20 kHz and shutter time of 285 ns was employed. Light transmittance is defined and calculated for each image pixel with a ratio method paired with no-spray images collected immediately before injection. These values are then related to an attenuation coefficient by incorporating spray width profiles collected with cross-sectional Mie-scatter imaging at multiple axial locations with a burst mode laser.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleQuantitative Definition of Spray Edge With Extinction Diagnostics and Evaluation of Attenuation Coefficient for Liquid Jets in Supersonic Crossflow
    typeJournal Paper
    journal volume146
    journal issue6
    journal titleJournal of Engineering for Gas Turbines and Power
    identifier doi10.1115/1.4063887
    journal fristpage61014-1
    journal lastpage61014-11
    page11
    treeJournal of Engineering for Gas Turbines and Power:;2024:;volume( 146 ):;issue: 006
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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