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    Investigation on Flowfield Characteristics and Performance of Shock Vector Control Nozzle Based on Confined Transverse Injection

    Source: Journal of Engineering for Gas Turbines and Power:;2016:;volume( 138 ):;issue: 010::page 101502
    Author:
    Jingwei, Shi
    ,
    Li, Zhou
    ,
    Zhanxue, Wang
    ,
    Xiaolin, Sun
    DOI: 10.1115/1.4033140
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Shock vector controlling (SVC) nozzle, based on confined transverse injection and shock wave/boundary layer interaction, offers an alternative for future aircraft thrust vectoring (TV) exhausting system, due to its simple structure, low weight, and quick vector response. In the paper, the flow mechanism of SVC nozzle was studied by numerical simulation after the validation of computational fluid dynamics (CFD) models was confirmed. Then, the influence of substantial affecting factors, including injection configurations and injection angles, on the confined transverse injection flowfield characteristics and vector performance was investigated numerically. The results show that the “خ»â€‌ shock wave induced by the jet injection causes unbalanced side force for the primary flow deflecting, and under larger secondary pressure ratio (SPR), the induced shock wave interacts with upper wall, weakening the thrust vector efficiency; with the increase of injection orifice numbers, the vector angle of SVC nozzle rises and is less than that of slot injection configuration; under smaller SPR, the thrust vector angle increases with the injection angle. For the case of SPR = 1.0 and 1.2, there exist optimal injection angles at which the maximum TV angle achieved.
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      Investigation on Flowfield Characteristics and Performance of Shock Vector Control Nozzle Based on Confined Transverse Injection

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    http://yetl.yabesh.ir/yetl1/handle/yetl/161186
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    • Journal of Engineering for Gas Turbines and Power

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    contributor authorJingwei, Shi
    contributor authorLi, Zhou
    contributor authorZhanxue, Wang
    contributor authorXiaolin, Sun
    date accessioned2017-05-09T01:28:49Z
    date available2017-05-09T01:28:49Z
    date issued2016
    identifier issn1528-8919
    identifier otherjert_138_04_042212.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/161186
    description abstractShock vector controlling (SVC) nozzle, based on confined transverse injection and shock wave/boundary layer interaction, offers an alternative for future aircraft thrust vectoring (TV) exhausting system, due to its simple structure, low weight, and quick vector response. In the paper, the flow mechanism of SVC nozzle was studied by numerical simulation after the validation of computational fluid dynamics (CFD) models was confirmed. Then, the influence of substantial affecting factors, including injection configurations and injection angles, on the confined transverse injection flowfield characteristics and vector performance was investigated numerically. The results show that the “خ»â€‌ shock wave induced by the jet injection causes unbalanced side force for the primary flow deflecting, and under larger secondary pressure ratio (SPR), the induced shock wave interacts with upper wall, weakening the thrust vector efficiency; with the increase of injection orifice numbers, the vector angle of SVC nozzle rises and is less than that of slot injection configuration; under smaller SPR, the thrust vector angle increases with the injection angle. For the case of SPR = 1.0 and 1.2, there exist optimal injection angles at which the maximum TV angle achieved.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleInvestigation on Flowfield Characteristics and Performance of Shock Vector Control Nozzle Based on Confined Transverse Injection
    typeJournal Paper
    journal volume138
    journal issue10
    journal titleJournal of Engineering for Gas Turbines and Power
    identifier doi10.1115/1.4033140
    journal fristpage101502
    journal lastpage101502
    identifier eissn0742-4795
    treeJournal of Engineering for Gas Turbines and Power:;2016:;volume( 138 ):;issue: 010
    contenttypeFulltext
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