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    An Additively Manufactured Four-Sensor Fast Response Aerodynamic Probe

    Source: Journal of Turbomachinery:;2021:;volume( 143 ):;issue: 007::page 071004-1
    Author:
    Chasoglou, Alexandros C.
    ,
    Tsirikoglou, Panagiotis
    ,
    Kalfas, Anestis I.
    ,
    Abhari, Reza S.
    DOI: 10.1115/1.4050360
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This study describes the design, development, and testing of a miniature fast response aerodynamic probe (FRAP) with four sensors (4S), which are able to perform measurements in the unsteady three-dimensional flow field. Moreover, the calibration and first results with the newly developed probe are provided. The miniature FRAP-4S demonstrates a 3 mm tip diameter, offering a 25% reduction in diameter size, in comparison to a first-generation FRAP-4S, without any loss in terms of measurement bandwidth. The 3 mm outer casing of the probe is additively manufactured with a high-precision binder jetting technique. In terms of aerodynamic performance, the probe demonstrates high angular sensitivity up to ± 18 deg incidence angle in both directions. To evaluate the measurement accuracy of the newly developed FRAP-4S, measurements are performed at the Laboratory for Energy Conversion (LEC) in both a round axisymmetric jet and an one-and-a-half stage, unshrouded and highly loaded axial turbine configuration. Turbulence measurements performed with the miniature FRAP-4S are compared against hot-wire studies in round free-jets found in the literature. Good agreement in both trends but also absolute values is demonstrated. Moreover, the performance of the probe is compared against traditional instrumentation developed at LEC, namely, miniature pneumatic and FRAP-2S probes. The results indicate that the FRAP-4S, despite its larger size in comparison to the other probes tested, can resolve the main flow patterns, with the highest deviations occuring in the presence of highly skewed and sheared flow. Furthermore, the additively manufactured probe was proven to be robust after more than 50 hours of testing in the representative turbine environment configuration. Finally, it should be highlighted that the newly developed FRAP reduces measurement time by a factor of three in comparison to FRAP-2S, which directly translates to reduced development time and thus cost during the turbomachinery development phase.
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      An Additively Manufactured Four-Sensor Fast Response Aerodynamic Probe

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4277012
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    contributor authorChasoglou, Alexandros C.
    contributor authorTsirikoglou, Panagiotis
    contributor authorKalfas, Anestis I.
    contributor authorAbhari, Reza S.
    date accessioned2022-02-05T22:09:05Z
    date available2022-02-05T22:09:05Z
    date copyright4/9/2021 12:00:00 AM
    date issued2021
    identifier issn0889-504X
    identifier otherturbo_143_7_071004.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4277012
    description abstractThis study describes the design, development, and testing of a miniature fast response aerodynamic probe (FRAP) with four sensors (4S), which are able to perform measurements in the unsteady three-dimensional flow field. Moreover, the calibration and first results with the newly developed probe are provided. The miniature FRAP-4S demonstrates a 3 mm tip diameter, offering a 25% reduction in diameter size, in comparison to a first-generation FRAP-4S, without any loss in terms of measurement bandwidth. The 3 mm outer casing of the probe is additively manufactured with a high-precision binder jetting technique. In terms of aerodynamic performance, the probe demonstrates high angular sensitivity up to ± 18 deg incidence angle in both directions. To evaluate the measurement accuracy of the newly developed FRAP-4S, measurements are performed at the Laboratory for Energy Conversion (LEC) in both a round axisymmetric jet and an one-and-a-half stage, unshrouded and highly loaded axial turbine configuration. Turbulence measurements performed with the miniature FRAP-4S are compared against hot-wire studies in round free-jets found in the literature. Good agreement in both trends but also absolute values is demonstrated. Moreover, the performance of the probe is compared against traditional instrumentation developed at LEC, namely, miniature pneumatic and FRAP-2S probes. The results indicate that the FRAP-4S, despite its larger size in comparison to the other probes tested, can resolve the main flow patterns, with the highest deviations occuring in the presence of highly skewed and sheared flow. Furthermore, the additively manufactured probe was proven to be robust after more than 50 hours of testing in the representative turbine environment configuration. Finally, it should be highlighted that the newly developed FRAP reduces measurement time by a factor of three in comparison to FRAP-2S, which directly translates to reduced development time and thus cost during the turbomachinery development phase.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleAn Additively Manufactured Four-Sensor Fast Response Aerodynamic Probe
    typeJournal Paper
    journal volume143
    journal issue7
    journal titleJournal of Turbomachinery
    identifier doi10.1115/1.4050360
    journal fristpage071004-1
    journal lastpage071004-10
    page10
    treeJournal of Turbomachinery:;2021:;volume( 143 ):;issue: 007
    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
    yabeshDSpacePersian