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Importance of Air Humidity and Contaminations in the Internal and External Transonic Flows

Author

Listed:
  • P. Wiśniewski

    (Department of Power Engineering and Turbomachinery, The Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland)

  • S. Dykas

    (Department of Power Engineering and Turbomachinery, The Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland)

  • S. Yamamoto

    (Department of Computer and Mathematical Sciences, Tohoku University, Sendai 980-8579, Japan)

Abstract

The paper presents mathematical modelling of steam condensation in the atmospheric air transonic flows. A single-fluid model was employed. The model was validated against the in-house experimental studies of internal flow in nozzles and against benchmark tests available in literature i.e., RAE2822 transonic airfoil. The impact of air relative humidity on the condensation process under transonic flow conditions was examined. The paper shows that the impact of the condensation process in air transonic flow is non-negligible and has to be taken under consideration in flow simulations. The presence of air contaminants in form of small particles was considered too. Their crucial role in the change of the transonic flow structure was numerically confirmed.

Suggested Citation

  • P. Wiśniewski & S. Dykas & S. Yamamoto, 2020. "Importance of Air Humidity and Contaminations in the Internal and External Transonic Flows," Energies, MDPI, vol. 13(12), pages 1-12, June.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:12:p:3153-:d:372921
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    References listed on IDEAS

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    1. Dykas, Sławomir & Majkut, Mirosław & Smołka, Krystian & Strozik, Michał, 2018. "Numerical analysis of the impact of pollutants on water vapour condensation in atmospheric air transonic flows," Applied Mathematics and Computation, Elsevier, vol. 338(C), pages 451-465.
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    Cited by:

    1. Jie Wang & Hongfang Gu, 2021. "A Study of Moist Air Condensation Characteristics in a Transonic Flow System," Energies, MDPI, vol. 14(13), pages 1-12, July.
    2. Piotr Wiśniewski & Guojie Zhang & Sławomir Dykas, 2022. "Numerical Investigation of the Influence of Air Contaminants on the Interfacial Heat Transfer in Transonic Flow in a Compressor Rotor," Energies, MDPI, vol. 15(12), pages 1-21, June.

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