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

Mahfoudh Cerdoun and Adel Ghenaiet

Energy, 2025, vol. 323, issue C

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.

Keywords: Turbocharging; Turbocharger matching; Diesel engine; Twin-entry radial turbine; Pulsating flows; Unsteady performance; Hysteresis loop (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:323:y:2025:i:c:s0360544225010709

DOI: 10.1016/j.energy.2025.135428

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