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    Numerical Study on the Effect of Channel Configuration on Mixture Formation of an Axial Flow Wave Rotor Combustor

    Source: Journal of Fluids Engineering:;2024:;volume( 146 ):;issue: 012::page 121202-1
    Author:
    Feng, Zhan
    ,
    Li, Jianzhong
    ,
    Gong, Erlei
    ,
    Yao, Qian
    ,
    Chen, Xinyu
    ,
    Chen, Yue
    DOI: 10.1115/1.4065543
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Wave rotor combustor technology is a new technical means to improve the thermal efficiency of aero-engine by using unsteady flow and constant volume combustion. In this article, the influence of wave rotor combustor channel structure on the mixture formation in the channel was studied by numerical simulation. The results showed that the internal flow field structure and change of any structure channel are similar. Flow separation will occur in all channels, and wake regions will be formed in the channels. The turbulence kinetic energy in the wake region was increased, and the velocity and pressure were decreased, resulting in the vortex in the channel. When the channel width was reduced to half of the original design, the relative standard deviation (RSD) of the mixture was reduced by at least 54.92% compared to the original design, and the global fuel mass fraction in the channel was increased by at least 27.32%. In addition, the fluctuation of discharge pressure was also reduced. The reduction of the channel height does not lead to a significant improvement in the aforementioned results. This study can provide guidance for the structural design of wave rotor combustor channel.
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      Numerical Study on the Effect of Channel Configuration on Mixture Formation of an Axial Flow Wave Rotor Combustor

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4305720
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    contributor authorFeng, Zhan
    contributor authorLi, Jianzhong
    contributor authorGong, Erlei
    contributor authorYao, Qian
    contributor authorChen, Xinyu
    contributor authorChen, Yue
    date accessioned2025-04-21T10:12:48Z
    date available2025-04-21T10:12:48Z
    date copyright6/6/2024 12:00:00 AM
    date issued2024
    identifier issn0098-2202
    identifier otherfe_146_12_121202.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4305720
    description abstractWave rotor combustor technology is a new technical means to improve the thermal efficiency of aero-engine by using unsteady flow and constant volume combustion. In this article, the influence of wave rotor combustor channel structure on the mixture formation in the channel was studied by numerical simulation. The results showed that the internal flow field structure and change of any structure channel are similar. Flow separation will occur in all channels, and wake regions will be formed in the channels. The turbulence kinetic energy in the wake region was increased, and the velocity and pressure were decreased, resulting in the vortex in the channel. When the channel width was reduced to half of the original design, the relative standard deviation (RSD) of the mixture was reduced by at least 54.92% compared to the original design, and the global fuel mass fraction in the channel was increased by at least 27.32%. In addition, the fluctuation of discharge pressure was also reduced. The reduction of the channel height does not lead to a significant improvement in the aforementioned results. This study can provide guidance for the structural design of wave rotor combustor channel.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleNumerical Study on the Effect of Channel Configuration on Mixture Formation of an Axial Flow Wave Rotor Combustor
    typeJournal Paper
    journal volume146
    journal issue12
    journal titleJournal of Fluids Engineering
    identifier doi10.1115/1.4065543
    journal fristpage121202-1
    journal lastpage121202-8
    page8
    treeJournal of Fluids Engineering:;2024:;volume( 146 ):;issue: 012
    contenttypeFulltext
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