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    “I-Spots” and Emmons’ Spot Production Rate

    Source: Journal of Turbomachinery:;2021:;volume( 143 ):;issue: 009::page 091019-1
    Author:
    Mayle, Robert E.
    ,
    Stripf, Matthias
    DOI: 10.1115/1.4051105
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: A new intermittency function flagging the turbulent, becalmed, and non-becalmed regions of transitional flow is introduced. In addition, a method is developed to detect embedded incipient turbulent spots within the non-becalmed regions of the flow, which are then documented, counted, and related to Emmons’ spot production rate. This in turn is used to calculate an intermittency distribution which when compared with that measured displays an excellent agreement. Finally, it is shown that correlations based on Narasimha’s intermittency equation are highly questionable.
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      “I-Spots” and Emmons’ Spot Production Rate

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    contributor authorMayle, Robert E.
    contributor authorStripf, Matthias
    date accessioned2022-02-06T05:54:12Z
    date available2022-02-06T05:54:12Z
    date copyright7/26/2021 12:00:00 AM
    date issued2021
    identifier issn0889-504X
    identifier otherturbo_143_9_091019.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4279015
    description abstractA new intermittency function flagging the turbulent, becalmed, and non-becalmed regions of transitional flow is introduced. In addition, a method is developed to detect embedded incipient turbulent spots within the non-becalmed regions of the flow, which are then documented, counted, and related to Emmons’ spot production rate. This in turn is used to calculate an intermittency distribution which when compared with that measured displays an excellent agreement. Finally, it is shown that correlations based on Narasimha’s intermittency equation are highly questionable.
    publisherThe American Society of Mechanical Engineers (ASME)
    title“I-Spots” and Emmons’ Spot Production Rate
    typeJournal Paper
    journal volume143
    journal issue9
    journal titleJournal of Turbomachinery
    identifier doi10.1115/1.4051105
    journal fristpage091019-1
    journal lastpage091019-6
    page6
    treeJournal of Turbomachinery:;2021:;volume( 143 ):;issue: 009
    contenttypeFulltext
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