Thermal Science and Engineering
Online ISSN : 1882-2592
Print ISSN : 0918-9963
ISSN-L : 0918-9963
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Volume 24, Issue 4
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  • Study of pressure fluctuation by two phase flow shock wave occurring in a nozzle
    Haruyuki NISHIJIMA, Kazuyoshi SADAMURA, Yosuke KAWAMURA, Masafumi NAKA ...
    2016 Volume 24 Issue 4 Pages 47-54
    Published: 2016
    Released on J-STAGE: November 13, 2016
    DOIhttps://doi.org/10.11368/tse.24.47
    JOURNAL FREE ACCESS
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    The experimental study using HFO1234yf as the refrigerant is carried out to investigate the influence of the existence of the two-phase flow shock wave in the supersonic nozzle for an ejector on the pressure fluctuation. It is clarified by the experiment that the two-phase flow shock wave not only has the amplification frequency components, but also the seriously large attenuation frequency components of the pressure variation. For the low inlet quality, the relatively large pressure fluctuations near the nozzle throat are reduced by the two-phase shock wave existing at the divergent section.
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