Characterization of a radial turbocharger turbine in pulsating flow by means of CFD and its application to engine modeling

J Galindo, P Fajardo, R Navarro, LM García-Cuevas - Applied Energy, 2013 - Elsevier
This paper presents a numerical study analyzing the effect of pulsating flow in a variable
geometry radial inflow turbine. The turbine behavior is analyzed under isentropic pulses …

Steady and pulsating flow efficiency of a waste-gated turbocharger radial flow turbine for automotive application

S Marelli, M Capobianco - Energy, 2011 - Elsevier
In the paper the results of an experimental investigation developed on a small turbocharger
turbine for automotive application are presented, including the effect of the waste-gate valve …

Evaluation of an electric turbo compound system for SI engines: A numerical approach

G Pasini, G Lutzemberger, S Frigo, S Marelli… - Applied Energy, 2016 - Elsevier
In a medium term scenario hybrid powertrain and Internal Combustion Engine (ICE)
downsizing represent the actual trend in vehicle technology to reduce fuel consumption and …

Evaluation of heat transfer effects in small turbochargers by theoretical model and its experimental validation

S Marelli, G Marmorato, M Capobianco - Energy, 2016 - Elsevier
In the last few years, the effect of diabatic test conditions on compressor performance maps
has been widely investigated leading some Authors to propose different correction models …

1D simulation and experimental analysis of a turbocharger compressor for automotive engines under unsteady flow conditions

F Bozza, V De Bellis, S Marelli, M Capobianco - SAE International Journal of …, 2011 - JSTOR
Turbocharging technique will play a fundamental role in the near future not only to improve
automotive engine performance, but also to reduce fuel consumption and exhaust emissions …

1D simulation and experimental analysis of a turbocharger turbine for automotive engines under steady and unsteady flow conditions

V De Bellis, S Marelli, F Bozza, M Capobianco - Energy Procedia, 2014 - Elsevier
Turbocharging technique is more and more widely employed on compression ignition and
spark ignition internal combustion engines, as well, to improve performance and reduce total …

Experimental analysis on the performance of a turbocharger compressor in the unstable operating region and close to the surge limit

S Marelli, C Carraro, G Marmorato, G Zamboni… - … Thermal and Fluid …, 2014 - Elsevier
To make simulation models able to accurately predict engine performance, a better
understanding of compressor behavior over an extended range can be accomplished by …

Experimental analysis of unsteady flow performance in an automotive turbocharger turbine fitted with a waste-gate valve

M Capobianco, S Marelli - Proceedings of the Institution of …, 2011 - journals.sagepub.com
Downsizing and turbocharging is today an effective way of enhancing fuel economy in
automotive engines. However, more information on compressor and turbine behaviour when …

An innovative measurement technique for the direct evaluation of the isentropic efficiency of turbocharger turbines

S Marelli, V Usai, C Cordalonga… - … Expo: Power for …, 2022 - asmedigitalcollection.asme.org
Turbocharging plays a key role not only in improving automotive engine performance, but
also in reducing fuel consumption and exhaust emissions for Spark Ignition and diesel …

Impact of the wastegate opening on radial turbine performance under steady and pulsating flow conditions

A Ketata, Z Driss, MS Abid - Proceedings of the Institution of …, 2020 - journals.sagepub.com
The present article attempts to describe the behavior of wastegated turbines under various
steady and pulsating flow conditions. For this, meanline and one-dimensional numerical …