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Non-ideal Effects in Compressible Swirling Flows

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Proceedings of the 3rd International Seminar on Non-Ideal Compressible Fluid Dynamics for Propulsion and Power (NICFD 2020)

Part of the book series: ERCOFTAC Series ((ERCO,volume 28))

Abstract

In this work we examine the behavior of non-ideal compressible swirling flows. Based on a first-principle analysis, we derive a generalized expression of the corrected flow per unit area as function of the isentropic exponent, characteristic Mach numbers, and swirl parameter. The calculated trends of the corrected flow with respect to these parameters, validated against results from high-fidelity computations, are used to infer physical insights on the behavior of swirling flows in turbomachinery cascades. The results suggest that fluid flows characterized by low values of the isentropic exponent show swirling behaviors that are substantially different than those exhibited by perfect gases. Ultimately, this can make the design of efficient turbomachines operating close to the critical point particularly challenging.

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Authors and Affiliations

  1. Propulsion and Power, Delft University of Technology, Delft, The Netherlands

    Francesco Tosto, Andrea Giuffre’, Piero Colonna & Matteo Pini

Authors
  1. Francesco Tosto
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  2. Andrea Giuffre’
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  3. Piero Colonna
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  4. Matteo Pini
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Corresponding author

Correspondence to Matteo Pini .

Editor information

Editors and Affiliations

  1. Propulsion and Power, Delft University of Technology, Delft, Zuid-Holland, The Netherlands

    Matteo Pini

  2. TES Group, VITO, Mol, Belgium

    Carlo De Servi

  3. Dipartimento di Energia, Politecnico di Milano, Milan, Italy

    Andrea Spinelli

  4. Institute of Energy Technology, Ruhr-Universität Bochum, Bochum, Nordrhein-Westfalen, Germany

    Francesca di Mare

  5. Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, Milan, Italy

    Alberto Guardone

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Tosto, F., Giuffre’, A., Colonna, P., Pini, M. (2021). Non-ideal Effects in Compressible Swirling Flows. In: Pini, M., De Servi, C., Spinelli, A., di Mare, F., Guardone, A. (eds) Proceedings of the 3rd International Seminar on Non-Ideal Compressible Fluid Dynamics for Propulsion and Power. NICFD 2020. ERCOFTAC Series, vol 28. Springer, Cham. https://doi.org/10.1007/978-3-030-69306-0_5

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  • DOI: https://doi.org/10.1007/978-3-030-69306-0_5

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-69305-3

  • Online ISBN: 978-3-030-69306-0

  • eBook Packages: EngineeringEngineering (R0)

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