冲击孔位置对涡轮叶片冲击/气膜复合冷却特性影响的实验研究

Xiang Cheng; Yuzhong Ding; Hongniu Wan; Wentao Ji; Wenquan Tao

doi:10.7652/xjtuxb202312006

冲击孔位置对涡轮叶片冲击/气膜复合冷却特性影响的实验研究

Xiang Cheng
, Yuzhong Ding
, Hongniu Wan
, Wentao Ji
, Wenquan Tao

能源与动力工程学院

Xi'an Jiaotong University

科研成果: 期刊稿件 › 文章 › 同行评审

5 引用（Scopus）

摘要

Toinvestigatetheeffectsofimpingementholepositionontheimpingement^/filmcoolingcharacteristicsoftheair-cooledturbinevanes fourvanes withdifferentcoolingstructures wereselectedfortheconjugateheattransferexperiments.Madeofresinmaterialswithlowthermalconductivity thetestvanesincludeonewithtypicalfilmcoolingbutwithoutjets (vane0), onewithtypicalimpingement^/filmcoolingandcenterlinenormaljets(vane1),onewithimpingement^/filmcoolingandoffsetjets(vane2),andonewithimpingement^/filmcoolingandstaggered offsetjets(vane3).Duringtheexperiment thetemperaturedistributionoutsidethetestvanes wasobtained byaninfraredthermalimager.Theexperimentalresultsindicatethattheheat transfercharacteristicsofturbinevanesareinfluencedbybothinternalandexternalcooling. Whentheblowingratiowashigher theheattransferbetweenthecoolantandtheinnersurfaceof thevane wasenhancedbyjetimpingement increasingtheintegratedcoolingeffectivenessof vanes1 2and3by3.1%^—6.7% comparedwithvane0.Amongthem duetotheimpingement holeoffset thejetimpingementenhancedregionofvanes2and3wasrelativelyindependentof thegasfilm coverageregion.Thus thedistributionoftheintegratedcoolingeffectivenessof vanes2and3wasmoreevenandsucheffectivenesswasgreaterthanthatofvane1.Vane0only hasthefilmcoolingstructure sothekineticenergyofthecoolantimmediatelydownstreamthe filmholewaslarger.Thecoolantreattachedfardownstreamtheinjection resultinginthereductionofheattransferlevels.However whentheblowingratiowasrelativelylow onlytheintegratedcoolingeffectivenessofvane1wasimproved comparedwithvane0.Becausetheoffset impingementconsumedmorecoolantkineticenergy theintegratedcoolingeffectivenessofvanes 2and3 wassignificantlyreduced whencompared withvane0.Atablowingratioof0.2 it decreasedby6.7% and11.6% respectively.

投稿的翻译标题	ExperimentalInvestigationonEffectsoftheImpingementHolePosition onImpingement^/Film CoolingCharacteristicsofTurbineVanes
源语言	繁体中文
页（从-至）	59-71
页数	13
期刊	Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University
卷	57
期	12
DOI	https://doi.org/10.7652/xjtuxb202312006
出版状态	已出版 - 12月 2023

关键词

impingement hole position
impingement/film cooling
integrated cooling effectiveness
turbine vane

访问文件

10.7652/xjtuxb202312006

其它文件与链接

链接到 Scopus 的出版物

引用此

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title = "冲击孔位置对涡轮叶片冲击/气膜复合冷却特性影响的实验研究",

abstract = "Toinvestigatetheeffectsofimpingementholepositionontheimpingement/filmcoolingcharacteristicsoftheair-cooledturbinevanes fourvanes withdifferentcoolingstructures wereselectedfortheconjugateheattransferexperiments.Madeofresinmaterialswithlowthermalconductivity thetestvanesincludeonewithtypicalfilmcoolingbutwithoutjets (vane0), onewithtypicalimpingement/filmcoolingandcenterlinenormaljets(vane1),onewithimpingement/filmcoolingandoffsetjets(vane2),andonewithimpingement/filmcoolingandstaggered offsetjets(vane3).Duringtheexperiment thetemperaturedistributionoutsidethetestvanes wasobtained byaninfraredthermalimager.Theexperimentalresultsindicatethattheheat transfercharacteristicsofturbinevanesareinfluencedbybothinternalandexternalcooling. Whentheblowingratiowashigher theheattransferbetweenthecoolantandtheinnersurfaceof thevane wasenhancedbyjetimpingement increasingtheintegratedcoolingeffectivenessof vanes1 2and3by3.1\%—6.7\% comparedwithvane0.Amongthem duetotheimpingement holeoffset thejetimpingementenhancedregionofvanes2and3wasrelativelyindependentof thegasfilm coverageregion.Thus thedistributionoftheintegratedcoolingeffectivenessof vanes2and3wasmoreevenandsucheffectivenesswasgreaterthanthatofvane1.Vane0only hasthefilmcoolingstructure sothekineticenergyofthecoolantimmediatelydownstreamthe filmholewaslarger.Thecoolantreattachedfardownstreamtheinjection resultinginthereductionofheattransferlevels.However whentheblowingratiowasrelativelylow onlytheintegratedcoolingeffectivenessofvane1wasimproved comparedwithvane0.Becausetheoffset impingementconsumedmorecoolantkineticenergy theintegratedcoolingeffectivenessofvanes 2and3 wassignificantlyreduced whencompared withvane0.Atablowingratioof0.2 it decreasedby6.7\% and11.6\% respectively.",

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author = "Xiang Cheng and Yuzhong Ding and Hongniu Wan and Wentao Ji and Wenquan Tao",

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doi = "10.7652/xjtuxb202312006",

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publisher = "Xi'an Jiaotong University",

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TY - JOUR

T1 - 冲击孔位置对涡轮叶片冲击/气膜复合冷却特性影响的实验研究

AU - Cheng, Xiang

AU - Ding, Yuzhong

AU - Wan, Hongniu

AU - Ji, Wentao

AU - Tao, Wenquan

PY - 2023/12

Y1 - 2023/12

N2 - Toinvestigatetheeffectsofimpingementholepositionontheimpingement/filmcoolingcharacteristicsoftheair-cooledturbinevanes fourvanes withdifferentcoolingstructures wereselectedfortheconjugateheattransferexperiments.Madeofresinmaterialswithlowthermalconductivity thetestvanesincludeonewithtypicalfilmcoolingbutwithoutjets (vane0), onewithtypicalimpingement/filmcoolingandcenterlinenormaljets(vane1),onewithimpingement/filmcoolingandoffsetjets(vane2),andonewithimpingement/filmcoolingandstaggered offsetjets(vane3).Duringtheexperiment thetemperaturedistributionoutsidethetestvanes wasobtained byaninfraredthermalimager.Theexperimentalresultsindicatethattheheat transfercharacteristicsofturbinevanesareinfluencedbybothinternalandexternalcooling. Whentheblowingratiowashigher theheattransferbetweenthecoolantandtheinnersurfaceof thevane wasenhancedbyjetimpingement increasingtheintegratedcoolingeffectivenessof vanes1 2and3by3.1%—6.7% comparedwithvane0.Amongthem duetotheimpingement holeoffset thejetimpingementenhancedregionofvanes2and3wasrelativelyindependentof thegasfilm coverageregion.Thus thedistributionoftheintegratedcoolingeffectivenessof vanes2and3wasmoreevenandsucheffectivenesswasgreaterthanthatofvane1.Vane0only hasthefilmcoolingstructure sothekineticenergyofthecoolantimmediatelydownstreamthe filmholewaslarger.Thecoolantreattachedfardownstreamtheinjection resultinginthereductionofheattransferlevels.However whentheblowingratiowasrelativelylow onlytheintegratedcoolingeffectivenessofvane1wasimproved comparedwithvane0.Becausetheoffset impingementconsumedmorecoolantkineticenergy theintegratedcoolingeffectivenessofvanes 2and3 wassignificantlyreduced whencompared withvane0.Atablowingratioof0.2 it decreasedby6.7% and11.6% respectively.

AB - Toinvestigatetheeffectsofimpingementholepositionontheimpingement/filmcoolingcharacteristicsoftheair-cooledturbinevanes fourvanes withdifferentcoolingstructures wereselectedfortheconjugateheattransferexperiments.Madeofresinmaterialswithlowthermalconductivity thetestvanesincludeonewithtypicalfilmcoolingbutwithoutjets (vane0), onewithtypicalimpingement/filmcoolingandcenterlinenormaljets(vane1),onewithimpingement/filmcoolingandoffsetjets(vane2),andonewithimpingement/filmcoolingandstaggered offsetjets(vane3).Duringtheexperiment thetemperaturedistributionoutsidethetestvanes wasobtained byaninfraredthermalimager.Theexperimentalresultsindicatethattheheat transfercharacteristicsofturbinevanesareinfluencedbybothinternalandexternalcooling. Whentheblowingratiowashigher theheattransferbetweenthecoolantandtheinnersurfaceof thevane wasenhancedbyjetimpingement increasingtheintegratedcoolingeffectivenessof vanes1 2and3by3.1%—6.7% comparedwithvane0.Amongthem duetotheimpingement holeoffset thejetimpingementenhancedregionofvanes2and3wasrelativelyindependentof thegasfilm coverageregion.Thus thedistributionoftheintegratedcoolingeffectivenessof vanes2and3wasmoreevenandsucheffectivenesswasgreaterthanthatofvane1.Vane0only hasthefilmcoolingstructure sothekineticenergyofthecoolantimmediatelydownstreamthe filmholewaslarger.Thecoolantreattachedfardownstreamtheinjection resultinginthereductionofheattransferlevels.However whentheblowingratiowasrelativelylow onlytheintegratedcoolingeffectivenessofvane1wasimproved comparedwithvane0.Becausetheoffset impingementconsumedmorecoolantkineticenergy theintegratedcoolingeffectivenessofvanes 2and3 wassignificantlyreduced whencompared withvane0.Atablowingratioof0.2 it decreasedby6.7% and11.6% respectively.

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KW - impingement/film cooling

KW - integrated cooling effectiveness

KW - turbine vane

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JO - Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University

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