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    Influence of Gap Shape on Flow Characteristics of Highly Loaded Compressor Tandem Cascades

    Source: Journal of Engineering for Gas Turbines and Power:;2024:;volume( 146 ):;issue: 009::page 91016-1
    Author:
    Mao, Xiaochen
    ,
    Jiao, Yingchen
    ,
    Cheng, Hao
    ,
    Zhang, Botao
    ,
    Liu, Bo
    DOI: 10.1115/1.4065019
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Gap shape is an important factor affecting the tandem cascade performance. This paper uses the gap expansion angle (Kb−b) to define gap shape and studies the effect of Kb−b on the two-dimensional flow field and flow characteristic near the endwall in a highly-loaded subsonic tandem cascade. By changing the incidence angle from −20 to 10°, the Kb−b value increases, and the two-dimensional tandem cascade performance improves at positive incidence angles, while it descends at zero and negative incidence angles. Due to the influence of Kb−b on the camber of front and rear blades (RB), the optimal Kb−b should provide appropriate load distribution and sufficient gap flow strength. The corner stall more likely appears on the front blade near the endwall, which can suppress the flow separation on the rear blade to a certain extent. The Kb−b value near the endwall should be slightly larger than in the midspan to ensure a sufficient operating range for the front blade. For a highly loaded subsonic tandem cascade, the overall optimal range of Kb−b is between −12 and 0°.
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      Influence of Gap Shape on Flow Characteristics of Highly Loaded Compressor Tandem Cascades

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4302926
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    • Journal of Engineering for Gas Turbines and Power

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    contributor authorMao, Xiaochen
    contributor authorJiao, Yingchen
    contributor authorCheng, Hao
    contributor authorZhang, Botao
    contributor authorLiu, Bo
    date accessioned2024-12-24T18:53:16Z
    date available2024-12-24T18:53:16Z
    date copyright4/4/2024 12:00:00 AM
    date issued2024
    identifier issn0742-4795
    identifier othergtp_146_09_091016.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4302926
    description abstractGap shape is an important factor affecting the tandem cascade performance. This paper uses the gap expansion angle (Kb−b) to define gap shape and studies the effect of Kb−b on the two-dimensional flow field and flow characteristic near the endwall in a highly-loaded subsonic tandem cascade. By changing the incidence angle from −20 to 10°, the Kb−b value increases, and the two-dimensional tandem cascade performance improves at positive incidence angles, while it descends at zero and negative incidence angles. Due to the influence of Kb−b on the camber of front and rear blades (RB), the optimal Kb−b should provide appropriate load distribution and sufficient gap flow strength. The corner stall more likely appears on the front blade near the endwall, which can suppress the flow separation on the rear blade to a certain extent. The Kb−b value near the endwall should be slightly larger than in the midspan to ensure a sufficient operating range for the front blade. For a highly loaded subsonic tandem cascade, the overall optimal range of Kb−b is between −12 and 0°.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleInfluence of Gap Shape on Flow Characteristics of Highly Loaded Compressor Tandem Cascades
    typeJournal Paper
    journal volume146
    journal issue9
    journal titleJournal of Engineering for Gas Turbines and Power
    identifier doi10.1115/1.4065019
    journal fristpage91016-1
    journal lastpage91016-12
    page12
    treeJournal of Engineering for Gas Turbines and Power:;2024:;volume( 146 ):;issue: 009
    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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