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Influence of flow swirling on the aerothermodynamic behaviour of flames

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Combustion, Explosion, and Shock Waves Aims and scope

Abstract

The present work focuses on the numerical simulation of diffusive flames in a confined high-swirl burner. Navier–Stokes equations expressed for a time-dependent, compressible, and three-dimensional flow with finite-rate kinetics are solved for lean methane/air mixtures. A simplified mechanism is used to model the combustion. Non-reactive and reactive cases are contrasted for a swirl number of 0.95. Three flames for swirl numbers of 0, 0.6, and 0.95 are analyzed. In swirling flows, the inner recirculation zone is mainly composed of reaction products, which help in ignition of the incoming fuel. Moreover, the forward stagnation point plays an important role, leading to an azimuthal deflection of the flame front.

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Authors and Affiliations

  1. University of Valladolid, 47011, Valladolid, Spain

    M. T. Parra-Santos & F. Castro-Ruiz

  2. University of Tarapacá, 100007, Arica, Chile

    V. Mendoza-Garcia

  3. Lund University, 22100, Lund, Sweden

    R. Szasz

  4. Lodz University of Technology, 90924, Lodz, Poland

    A. N. Gutkowski

Authors
  1. M. T. Parra-Santos
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  2. V. Mendoza-Garcia
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  3. R. Szasz
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  4. A. N. Gutkowski
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  5. F. Castro-Ruiz
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Corresponding author

Correspondence to M. T. Parra-Santos.

Additional information

Original Russian Text © M.T. Parra-Santos, V. Mendoza-Garcia, R. Szasz, A.N. Gutkowski, and F. Castro-Ruiz.

Published in Fizika Goreniya i Vzryva, Vol. 51, No. 4, pp. 29–36, July–August, 2015.

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Parra-Santos, M.T., Mendoza-Garcia, V., Szasz, R. et al. Influence of flow swirling on the aerothermodynamic behaviour of flames. Combust Explos Shock Waves 51, 424–430 (2015). https://doi.org/10.1134/S0010508215040048

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  • DOI: https://doi.org/10.1134/S0010508215040048

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