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    Heat Transfer in Squeeze-Film Flow Between Rotating Disks

    Source: Journal of Tribology:;2024:;volume( 147 ):;issue: 001::page 14601-1
    Author:
    Haria, Hiral
    ,
    Katopodes, Nikolaos D.
    ,
    Lakhani, Raj V.
    ,
    Miyagawa, Masatoshi
    ,
    Sadaike, Yutaka
    ,
    Fujii, Yuji
    DOI: 10.1115/1.4066206
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: A numerical and experimental study is conducted to investigate the effects of heat transfer on the squeeze-film flow between two parallel rotating disks, one of which is flat while the other has a grooved, highly rough surface. A conjugate heat transfer technique is developed to evaluate the torque and temperature distribution within the thin-film lubrication system, as the two disks advance toward each other. For the fluid domain, the energy equation is solved simultaneously with the squeeze-film equations coupled with an empirical contact model. Additionally, the energy equation is solved for the flat disk to determine the heat transfer by conduction while the grooved disk is assumed to be adiabatic. The heat exchange at the solid–fluid interface is determined iteratively using the energy equations from both the fluid and solid domains. The governing equations are solved using the finite-volume method, and the numerical model is tested for grid convergence and conservation of energy. An experimental study is conducted to collect torque and temperature data that are used to validate the model for the engagement dynamics of a wet clutch. The numerical and experimental analyses demonstrate the importance of thermal effects when evaluating the dynamics of squeeze-film flow between two rotating disks. Heat transfer affects the viscous and mixed lubrication phases of the engagement process significantly, especially for low initial temperatures. Moreover, the study highlights the strong effects of flow recirculation on heat transfer due to the complex geometry of the grooved friction material.
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      Heat Transfer in Squeeze-Film Flow Between Rotating Disks

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    contributor authorHaria, Hiral
    contributor authorKatopodes, Nikolaos D.
    contributor authorLakhani, Raj V.
    contributor authorMiyagawa, Masatoshi
    contributor authorSadaike, Yutaka
    contributor authorFujii, Yuji
    date accessioned2025-04-21T10:10:23Z
    date available2025-04-21T10:10:23Z
    date copyright9/11/2024 12:00:00 AM
    date issued2024
    identifier issn0742-4787
    identifier othertrib_147_1_014601.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4305641
    description abstractA numerical and experimental study is conducted to investigate the effects of heat transfer on the squeeze-film flow between two parallel rotating disks, one of which is flat while the other has a grooved, highly rough surface. A conjugate heat transfer technique is developed to evaluate the torque and temperature distribution within the thin-film lubrication system, as the two disks advance toward each other. For the fluid domain, the energy equation is solved simultaneously with the squeeze-film equations coupled with an empirical contact model. Additionally, the energy equation is solved for the flat disk to determine the heat transfer by conduction while the grooved disk is assumed to be adiabatic. The heat exchange at the solid–fluid interface is determined iteratively using the energy equations from both the fluid and solid domains. The governing equations are solved using the finite-volume method, and the numerical model is tested for grid convergence and conservation of energy. An experimental study is conducted to collect torque and temperature data that are used to validate the model for the engagement dynamics of a wet clutch. The numerical and experimental analyses demonstrate the importance of thermal effects when evaluating the dynamics of squeeze-film flow between two rotating disks. Heat transfer affects the viscous and mixed lubrication phases of the engagement process significantly, especially for low initial temperatures. Moreover, the study highlights the strong effects of flow recirculation on heat transfer due to the complex geometry of the grooved friction material.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleHeat Transfer in Squeeze-Film Flow Between Rotating Disks
    typeJournal Paper
    journal volume147
    journal issue1
    journal titleJournal of Tribology
    identifier doi10.1115/1.4066206
    journal fristpage14601-1
    journal lastpage14601-18
    page18
    treeJournal of Tribology:;2024:;volume( 147 ):;issue: 001
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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