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Helicity of the Velocity Field in Evaluating the Efficiency of Turbomachines

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International Scientific Conference Energy Management of Municipal Facilities and Sustainable Energy Technologies EMMFT 2018 (EMMFT-2018 2018)

Part of the book series: Advances in Intelligent Systems and Computing ((AISC,volume 982))

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Abstract

Improvement of gas turbine engines (GTE) as a complex technical system requires a reliable estimate of the quantities responsible for the performance indicators of engine efficiency units. The dependence was obtained for calculating the efficiency of the turbine stage, taking into account large-scale vortex structures in the inter-path channel of the turbomachine, and validating it. It is noted that the helicity of the velocity field is equal to the decrease of the total enthalpy for adiabatic gas flows. An example is given for calculation of the efficiency of a model turbine stage taking into account the helicity of the velocity field, and its decrease is shown to be 0.15%.

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Authors and Affiliations

  1. Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya 29, 195251, St. Petersburg, Russia

    Nikolay Kortikov

  2. Ltd “Constanta-XXI”, Seleznevsckay ul. 15/2, 127473, Moscow, Russia

    Andrey Nazarenko

Authors
  1. Nikolay Kortikov
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  2. Andrey Nazarenko
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Corresponding author

Correspondence to Nikolay Kortikov .

Editor information

Editors and Affiliations

  1. Moscow State University of Civil Engineering, Moscow, Russia

    Vera Murgul

  2. Department of Information Engineering, Università degli Studi di Brescia, Brescia, Italy

    Marco Pasetti

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Kortikov, N., Nazarenko, A. (2020). Helicity of the Velocity Field in Evaluating the Efficiency of Turbomachines. In: Murgul, V., Pasetti, M. (eds) International Scientific Conference Energy Management of Municipal Facilities and Sustainable Energy Technologies EMMFT 2018. EMMFT-2018 2018. Advances in Intelligent Systems and Computing, vol 982. Springer, Cham. https://doi.org/10.1007/978-3-030-19756-8_51

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