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Simulation study for injection of two-phase fuel mixture into a cylindrical afterburner with asymmetric air inlet

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Thermophysics and Aeromechanics Aims and scope

Abstract

A method is developed for secondary data processing of the results of simulation of two-phase flow in an afterburner with a complex geometry. This method offers a prediction for mixing process efficiency (quality estimate) and combustion efficiency in an afterburner of a power plant. The opportunities of this method were demonstrated at the example of simulation of mixing the two-phase fuel with air in the afterburner of a model power plant with gas generation outlay. The paper presents a mathematical model for studied processes and the simulation results. The fuel was the gasification products (GP) of a high-energy composition (a mixture of gaseous and condensed phases). An algorithm was applied for processing the mathematical simulation results: the output is the evaluation of mixing between GP condensed phase and air flow. The parametric study offers the dependencies for size distributions of GP particles in the afterburner cross sections. The limiting values for GP combustion efficiency in the afterburner were evaluated from analysis of GP flow (gas and condensed phases) mixing with air flow. Simulation gives the data on the influence of injection configuration and GP condensed phase dispersion profile on the mixing efficiency in the afterburner. The results of study can be useful in recommendations for gaining on the cycle efficiency in novel propulsion plants.

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Authors and Affiliations

  1. Bauman Moscow State Technical University, Moscow, Russia

    A. V. Voronetskii, K. Yu. Aref’ev & M. A. Abramov

  2. Baranov Central Institute of Aviation Motors, Moscow, Russia

    K. Yu. Aref’ev & M. A. Abramov

  3. Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, Russia

    K. Yu. Aref’ev & M. A. Abramov

Authors
  1. A. V. Voronetskii
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  2. K. Yu. Aref’ev
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  3. M. A. Abramov
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Corresponding author

Correspondence to M. A. Abramov.

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Research is supported by the RSF (Grant No. 19-49-02031).

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Voronetskii, A.V., Aref’ev, K.Y. & Abramov, M.A. Simulation study for injection of two-phase fuel mixture into a cylindrical afterburner with asymmetric air inlet. Thermophys. Aeromech. 27, 793–810 (2020). https://doi.org/10.1134/S0869864320060013

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  • DOI: https://doi.org/10.1134/S0869864320060013

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