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Development and Assessment of an Integrated 1D-3D CFD Codes Coupling Methodology for Diesel Engine Combustion Simulation and Optimization

Author

Listed:
  • Federico Millo

    (Energy Department, Politecnico di Torino, 10129 Torino, Italy)

  • Andrea Piano

    (Energy Department, Politecnico di Torino, 10129 Torino, Italy)

  • Benedetta Peiretti Paradisi

    (Energy Department, Politecnico di Torino, 10129 Torino, Italy)

  • Mario Rocco Marzano

    (Energy Department, Politecnico di Torino, 10129 Torino, Italy)

  • Andrea Bianco

    (POWERTECH Engineering, 10127 Torino, Italy)

  • Francesco C. Pesce

    (General Motors Global Propulsion Systems, 10129 Torino, Italy)

Abstract

In this paper, an integrated and automated methodology for the coupling between 1D- and 3D-CFD simulation codes is presented, which has been developed to support the design and calibration of new diesel engines. The aim of the proposed methodology is to couple 1D engine models, which may be available in the early stage engine development phases, with 3D predictive combustion simulations, in order to obtain reliable estimates of engine performance and emissions for newly designed automotive diesel engines. The coupling procedure features simulations performed in 1D-CFD by means of GT-SUITE and in 3D-CFD by means of Converge, executed within a specifically designed calculation methodology. An assessment of the coupling procedure has been performed by comparing its results with experimental data acquired on an automotive diesel engine, considering different working points, including both part load and full load conditions. Different multiple injection schedules have been evaluated for part-load operation, including pre and post injections. The proposed methodology, featuring detailed 3D chemistry modeling, was proven to be capable assessing pollutant formation properly, specifically to estimate NOx concentrations. Soot formation trends were also well-matched for most of the explored working points. The proposed procedure can therefore be considered as a suitable methodology to support the design and calibration of new diesel engines, due to its ability to provide reliable engine performance and emissions estimations from the early stage of a new engine development.

Suggested Citation

  • Federico Millo & Andrea Piano & Benedetta Peiretti Paradisi & Mario Rocco Marzano & Andrea Bianco & Francesco C. Pesce, 2020. "Development and Assessment of an Integrated 1D-3D CFD Codes Coupling Methodology for Diesel Engine Combustion Simulation and Optimization," Energies, MDPI, vol. 13(7), pages 1-21, April.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:7:p:1612-:d:340151
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    References listed on IDEAS

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    1. Leach, Felix & Ismail, Riyaz & Davy, Martin & Weall, Adam & Cooper, Brian, 2018. "The effect of a stepped lip piston design on performance and emissions from a high-speed diesel engine," Applied Energy, Elsevier, vol. 215(C), pages 679-689.
    2. Leach, Felix & Ismail, Riyaz & Davy, Martin, 2018. "Engine-out emissions from a modern high speed diesel engine – The importance of Nozzle Tip Protrusion," Applied Energy, Elsevier, vol. 226(C), pages 340-352.
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    Cited by:

    1. Federico Millo & Andrea Piano & Salvatore Roggio & Francesco C. Pesce & Alberto Vassallo & Andrea Bianco, 2022. "Numerical Assessment on the Influence of Engine Calibration Parameters on Innovative Piston Bowls Designed for Light-Duty Diesel Engines," Energies, MDPI, vol. 15(10), pages 1-18, May.
    2. Alexandru Cernat & Constantin Pana & Niculae Negurescu & Gheorghe Lazaroiu & Cristian Nutu & Dinu Fuiorescu, 2020. "Hydrogen—An Alternative Fuel for Automotive Diesel Engines Used in Transportation," Sustainability, MDPI, vol. 12(22), pages 1-21, November.

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