Effects of unsteady pulsating flows on the matching of a radial turbine with a spark-ignition engine

Mahfoudh Cerdoun, Adel Ghenaiet, Giovanni Ferrara, Laboratory of Turbomachinery, Ecole Militaire Polytechnique, Laboratory of Energy Conversion Systems, Faculty of Mechanical Engineering and Process Engineering, University of Science and Technology Houari Boumediene, Department of Industrial Engineering, University of Florence

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering

Published online on May 13, 2026

Abstract

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, Ahead of Print.
The matching of a radial inflow turbine with a piston engine, while ensuring torque backup across ranges of engine speeds and loads, is a complex task due to the nature of exhaust gas flows. This paper investigates the effects of pulsating exhaust gas ...