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Flow Field Parametric Interpolation Using a Proper Orthogonal Decomposition: Application to the Variable Valve Timing Effect on a Tumble In-cylinder Miller Engine Mean Flow

Author

Listed:
  • Marcellin Perceau

    (Renault, 78280 Guyancourt, France
    Institut Jean le Rond d’Alembert, Sorbonne Université, CNRS UMR 7190, 78210 Saint-Cyr-l’Ecole, France)

  • Philippe Guibert

    (Institut Jean le Rond d’Alembert, Sorbonne Université, CNRS UMR 7190, 78210 Saint-Cyr-l’Ecole, France)

  • Stéphane Guilain

    (Renault, 78280 Guyancourt, France)

Abstract

The current article presents a method to reconstruct the mean velocity field of a cyclic flow for an input parameter value that has not been measured, allowing for the number of tests to be reduced. It is applied to the tumble flow of a gasoline engine following a Miller cycle. New engines often include variable valve timing (VVT) systems to maximize the efficiency of such over-expanded cycles for different operating points. The reconstruction was thus carried out using different offset values of the intake valve lift timing. Experimental data were collected from a transparent engine in an early intake valve closing (EIVC) configuration using particle image velocimetry (PIV). The mean velocity field reconstruction was based on the interpolation of the proper orthogonal decomposition (POD) coefficients. The accuracy of the method was evaluated at different points by comparing the interpolated and the measured flow fields. The accuracy was estimated by calculating the error in the rotation rate of the tumble and the position of its center of rotation. The new mean velocity field set allowed for the position of the tumble’s center of rotation to be closely tracked according to the input parameter and a rotation rate map to be made. Some results on Miller’s cycle could thus be found and the data generated could guide future developments.

Suggested Citation

  • Marcellin Perceau & Philippe Guibert & Stéphane Guilain, 2021. "Flow Field Parametric Interpolation Using a Proper Orthogonal Decomposition: Application to the Variable Valve Timing Effect on a Tumble In-cylinder Miller Engine Mean Flow," Energies, MDPI, vol. 14(17), pages 1-18, August.
  • Handle: RePEc:gam:jeners:v:14:y:2021:i:17:p:5324-:d:623236
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    References listed on IDEAS

    as
    1. Zhao, Jinxing, 2017. "Research and application of over-expansion cycle (Atkinson and Miller) engines – A review," Applied Energy, Elsevier, vol. 185(P1), pages 300-319.
    2. Mohammed El-Adawy & Morgan R. Heikal & A. Rashid A. Aziz & Muhammad I. Siddiqui & Shahzad Munir, 2017. "Characterization of the Inlet Port Flow under Steady-State Conditions Using PIV and POD," Energies, MDPI, vol. 10(12), pages 1-16, November.
    3. Mohammed El-Adawy & Morgan R. Heikal & A. Rashid A. Aziz & Ibrahim Khalil Adam & Mhadi A. Ismael & Mohammed E. Babiker & Masri B. Baharom & Firmansyah & Ezrann Zharif Zainal Abidin, 2018. "On the Application of Proper Orthogonal Decomposition (POD) for In-Cylinder Flow Analysis," Energies, MDPI, vol. 11(9), pages 1-22, August.
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