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Unsteady matching of a twin-entry radial turbine with a diesel engine

Author

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  • Cerdoun, Mahfoudh
  • Ghenaiet, Adel

Abstract

Matching a radial inflow turbine with an internal combustion engine (ICE) while ensuring torque backup across a broad range of loads and speeds is a very complex task, considering the pulsating exhaust gas flows. This study aims to investigate the impacts of pulsating gas flows in a radial turbine with an asymmetric twin-entry volute, and the transient responsiveness of the turbocharger in terms of performance when matched with a diesel engine at different conditions. To achieve these goals, a 3-D Computational Fluid Dynamics (CFD) model and a 1-D Wave Dynamics Simulation (WDS) are implemented.

Suggested Citation

  • Cerdoun, Mahfoudh & Ghenaiet, Adel, 2025. "Unsteady matching of a twin-entry radial turbine with a diesel engine," Energy, Elsevier, vol. 323(C).
    • Handle: RePEc:eee:energy:v:323:y:2025:i:c:s0360544225010709
    DOI: 10.1016/j.energy.2025.135428
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    References listed on IDEAS

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    1. Rajoo, Srithar & Romagnoli, Alessandro & Martinez-Botas, Ricardo F., 2012. "Unsteady performance analysis of a twin-entry variable geometry turbocharger turbine," Energy, Elsevier, vol. 38(1), pages 176-189.
    2. Zhu, Sipeng & Deng, Kangyao & Liu, Sheng, 2015. "Modeling and extrapolating mass flow characteristics of a radial turbocharger turbine," Energy, Elsevier, vol. 87(C), pages 628-637.
    3. Wei, Jiangshan & Xue, Yingxian & Deng, Kangyao & Yang, Mingyang & Liu, Ying, 2020. "A direct comparison of unsteady influence of turbine with twin-entry and single-entry scroll on performance of internal combustion engine," Energy, Elsevier, vol. 212(C).
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