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    Numerical Investigation of the Impact of the Rectangular Nozzle Aspect Ratio on Liquid Jet in Crossflow

    Source: Journal of Fluids Engineering:;2024:;volume( 146 ):;issue: 012::page 121402-1
    Author:
    Shao, Meng
    ,
    He, Zhixia
    ,
    Wang, Qian
    DOI: 10.1115/1.4065705
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: High-fidelity simulation is conducted to investigate liquid jet in crossflow, specifically regarding the rectangular nozzle. The influence of aspect ratio (AR) of nozzles on the atomization characteristics of liquid column in the process of primary breakup is explored by the analysis of the flow structure of crossflow and liquid column. The aspect ratio is ranging from 1 to 8. The results indicate that as the increase of aspect ratio, the disturbance of crossflow to the liquid on the sides is weakened. While the thickness of liquid column also gradually decreases, which enables smaller disturbances to promote droplet shedding. Therefore, surface breakup first weakens and then strengthens. In the column breakup process, the increase of aspect ratio causes crossflow to become the main factor affecting column breakup, and the influence of air pressure gradually weakens. This indicates a shift in the mechanism of surface instability from “Rayleigh–Taylor” (R–T) instability to “Kelvin–Helmholtz” (K–H) instability.
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      Numerical Investigation of the Impact of the Rectangular Nozzle Aspect Ratio on Liquid Jet in Crossflow

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4306523
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    • Journal of Fluids Engineering

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    contributor authorShao, Meng
    contributor authorHe, Zhixia
    contributor authorWang, Qian
    date accessioned2025-04-21T10:36:00Z
    date available2025-04-21T10:36:00Z
    date copyright6/20/2024 12:00:00 AM
    date issued2024
    identifier issn0098-2202
    identifier otherfe_146_12_121402.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4306523
    description abstractHigh-fidelity simulation is conducted to investigate liquid jet in crossflow, specifically regarding the rectangular nozzle. The influence of aspect ratio (AR) of nozzles on the atomization characteristics of liquid column in the process of primary breakup is explored by the analysis of the flow structure of crossflow and liquid column. The aspect ratio is ranging from 1 to 8. The results indicate that as the increase of aspect ratio, the disturbance of crossflow to the liquid on the sides is weakened. While the thickness of liquid column also gradually decreases, which enables smaller disturbances to promote droplet shedding. Therefore, surface breakup first weakens and then strengthens. In the column breakup process, the increase of aspect ratio causes crossflow to become the main factor affecting column breakup, and the influence of air pressure gradually weakens. This indicates a shift in the mechanism of surface instability from “Rayleigh–Taylor” (R–T) instability to “Kelvin–Helmholtz” (K–H) instability.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleNumerical Investigation of the Impact of the Rectangular Nozzle Aspect Ratio on Liquid Jet in Crossflow
    typeJournal Paper
    journal volume146
    journal issue12
    journal titleJournal of Fluids Engineering
    identifier doi10.1115/1.4065705
    journal fristpage121402-1
    journal lastpage121402-12
    page12
    treeJournal of Fluids Engineering:;2024:;volume( 146 ):;issue: 012
    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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