Numerical study of the mixture formation process in a four-strokeGDI engine for two-wheel applications

Allocca, Luigi and Costa, Michela and Sorge, Ugo (2011) Numerical study of the mixture formation process in a four-strokeGDI engine for two-wheel applications. Simulation Modelling Practice and Theory, 19. pp. 1212-1226. ISSN 1569-190X

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Abstract

Guidelines for managing the mixture formation process in a high-performance four-stroke Gasoline Direct Injection (GDI) engine for two-wheel applications are discussed, as derived from a multidimensional modelling of the in-cylinder processes. Gasoline adduction from a multi-hole injector is simulated by resorting to a properly developed model that accounts for the dependence of the initial droplets size distribution upon injection pressure. The model portability is preliminary demonstrated by comparison with experimental measurements carried out on sprays entering a confined vessel at controlled conditions. The simulation of different engine operating conditions highlights the capability to work under the so-called ‘‘mixed mode” boosting with spray guided mixture formation.

Item Type:	Article
Uncontrolled Keywords:	Spark ignition engine; Gasoline direct injection; Computational fluid dynamics; Mixed mode boosting; Spray guided combustion
Subjects:	600 Tecnologia - Scienze applicate > 620 Ingegneria e attivita' affini > 629 Altri rami dell'ingegneria > 629.2 Veicoli terrestri a motore; Cicli > 629.25 Motori (Classificare qui il controllo dell'inquinamento) > 629.2503 Motori a combustione interna
Depositing User:	Rosina Serpe
Date Deposited:	05 Jan 2012 10:51
Last Modified:	05 Jan 2012 10:51
URI:	http://eprints.bice.rm.cnr.it/id/eprint/3783

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