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Cavitation in Nozzle: The Effect of Pressure on the Vapor Content

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Advances in Design, Simulation and Manufacturing II (DSMIE 2019)

Part of the book series: Lecture Notes in Mechanical Engineering ((LNME))

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Abstract

Two-phase nozzles can work in jet injectors of various applications, including jet heat pumps (steam-water injectors) and thermocompressors. Lack of a reliable description of the mechanism of the evaporating liquid flow limits their use as energy-efficient working bodies. The estimation of effect of the vapor content on the initial pressure and temperature will make it possible to determine the variant of initial parameters, at which the overproduction of the vapor is the greatest. The goal of this work is to investigate the effect of pressure and temperature at the nozzle inlet to outlet vapor content. We use the model of a compressible two-phase medium, the kinetic model of evaporation/condensation. The model also includes the dynamic and mechanical equilibrium of the process. The mathematical model using CFD package of Ansys CFX software considers the dynamic growth of the vapor bubble. The obtained results show the average deviation from the experimental value, particularly 2% for pressure and 10% for speed. Increasing pressure and temperature at the nozzle inlet leads to increasing the vapor mass fraction at the nozzle outlet.

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Authors and Affiliations

  1. Sumy State University, 2 Rymskogo-Korsakova St., Sumy, 40007, Ukraine

    Oleh Chekh, Serhii Sharapov, Maxim Prokopov & Viktor Kozin

  2. Bialystok University of Technology, 45A Wiejska St., 15-351, Bialystok, Poland

    Dariusz Butrymowicz

Authors
  1. Oleh Chekh
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  2. Serhii Sharapov
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  3. Maxim Prokopov
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  4. Viktor Kozin
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  5. Dariusz Butrymowicz
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Corresponding author

Correspondence to Oleh Chekh .

Editor information

Editors and Affiliations

  1. Sumy State University, Sumy, Ukraine

    Vitalii Ivanov

  2. Poznan University of Technology, Poznań, Poland

    Justyna Trojanowska

  3. University of Minho, Guimaraes, Portugal

    Jose Machado

  4. Sumy State University, Sumy, Ukraine

    Oleksandr Liaposhchenko

  5. Prešov, Slovakia

    Jozef Zajac

  6. Sumy State University, Sumy, Ukraine

    Ivan Pavlenko

  7. University of West Bohemia, Pilsen, Czech Republic

    Milan Edl

  8. University of Zagreb, Zagreb, Croatia

    Dragan Perakovic

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Chekh, O., Sharapov, S., Prokopov, M., Kozin, V., Butrymowicz, D. (2020). Cavitation in Nozzle: The Effect of Pressure on the Vapor Content. In: Ivanov, V., et al. Advances in Design, Simulation and Manufacturing II. DSMIE 2019. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-22365-6_52

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  • DOI: https://doi.org/10.1007/978-3-030-22365-6_52

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-22364-9

  • Online ISBN: 978-3-030-22365-6

  • eBook Packages: EngineeringEngineering (R0)

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