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    Computational Protocol for Spray Flow Simulations Including Primary Atomization

    Source: Journal of Fluids Engineering:;2020:;volume( 143 ):;issue: 003::page 031402-1
    Author:
    Lee, T.-W.
    ,
    Greenlee, B.
    ,
    Park, J. E.
    DOI: 10.1115/1.4049115
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Primary atomization is the key element in spray flow simulations. We have, in our previous work, used and validated the integral form of the conservation equations, leading to the “quadratic formula” for determination of the drop size during spray atomization in various geometry. A computational protocol has been developed where this formulation is adapted to existing computational frameworks for continuous and dispersed (droplet) liquid phase, for simulations of pressure-atomized sprays with and without swirl. In principle, this protocol can be applied to any spray geometry, with appropriate modifications in the atomization criterion. The preatomization continuous liquid motion (e.g., liquid column or sheet) is computed using volume-of-fluid (VOF) or similar methods, then the velocity data from this computation is input to the quadratic formula for determination of the local drop size. This initial drop size, along with the local liquid velocities from VOF, is then used in a Lagrangian tracking algorithm for the postatomization dispersed droplet calculations. This protocol can be implemented on coarse-grid, time-averaged simulations of spray flows, and produces convincing results when compared with experimental data for pressure-atomized sprays with and without swirl. This approach is general, and can be adapted in any spray geometries for complete and efficient computations of spray flows.
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      Computational Protocol for Spray Flow Simulations Including Primary Atomization

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4277210
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    • Journal of Fluids Engineering

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    contributor authorLee, T.-W.
    contributor authorGreenlee, B.
    contributor authorPark, J. E.
    date accessioned2022-02-05T22:15:05Z
    date available2022-02-05T22:15:05Z
    date copyright12/15/2020 12:00:00 AM
    date issued2020
    identifier issn0098-2202
    identifier otherfe_143_03_031402.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4277210
    description abstractPrimary atomization is the key element in spray flow simulations. We have, in our previous work, used and validated the integral form of the conservation equations, leading to the “quadratic formula” for determination of the drop size during spray atomization in various geometry. A computational protocol has been developed where this formulation is adapted to existing computational frameworks for continuous and dispersed (droplet) liquid phase, for simulations of pressure-atomized sprays with and without swirl. In principle, this protocol can be applied to any spray geometry, with appropriate modifications in the atomization criterion. The preatomization continuous liquid motion (e.g., liquid column or sheet) is computed using volume-of-fluid (VOF) or similar methods, then the velocity data from this computation is input to the quadratic formula for determination of the local drop size. This initial drop size, along with the local liquid velocities from VOF, is then used in a Lagrangian tracking algorithm for the postatomization dispersed droplet calculations. This protocol can be implemented on coarse-grid, time-averaged simulations of spray flows, and produces convincing results when compared with experimental data for pressure-atomized sprays with and without swirl. This approach is general, and can be adapted in any spray geometries for complete and efficient computations of spray flows.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleComputational Protocol for Spray Flow Simulations Including Primary Atomization
    typeJournal Paper
    journal volume143
    journal issue3
    journal titleJournal of Fluids Engineering
    identifier doi10.1115/1.4049115
    journal fristpage031402-1
    journal lastpage031402-8
    page8
    treeJournal of Fluids Engineering:;2020:;volume( 143 ):;issue: 003
    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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