CFD optimization for GDI spray model tuning and enhancement of engine performance (Articolo in rivista)

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Label
  • CFD optimization for GDI spray model tuning and enhancement of engine performance (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.advengsoft.2012.03.004 (literal)
Alternative label
  • Michela Costa, Ugo Sorge, Luigi Allocca (2012)
    CFD optimization for GDI spray model tuning and enhancement of engine performance
    in Advances in engineering software (1992); Elsevier Science Ltd., Oxford (Regno Unito)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Michela Costa, Ugo Sorge, Luigi Allocca (literal)
Pagina inizio
  • 43 (literal)
Pagina fine
  • 53 (literal)
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  • 49 (literal)
Rivista
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  • 11 (literal)
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  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
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  • -- (literal)
Titolo
  • CFD optimization for GDI spray model tuning and enhancement of engine performance (literal)
Abstract
  • Coupling a 3D Computational Fluid Dynamics (CFD) tool with a rigorous method of decision making is becoming indispensable in the design process of complex systems, as internal combustion engines. CFD based optimization (CFD-O) is here carried out on a single cylinder, four-valve, four-stroke gasoline direct injection (GDI) engine, to enhance mixture formation under stratified charge operation, hence to choose between the single or double injection strategy maximizing the engine power output. A 3D engine model is coupled with the Simplex algorithm to find the optimal synchronization of both injection and spark timing within the working cycle. CFD-O is also addressed to perform the validation of the gasoline spray model, that otherwise reveals tedious and time-consuming. The Simplex algorithm is used to tune the constants entering a model developed by authors, as applied to three different high pressure GDI injectors, preliminary experimentally characterized. Fully automatic procedures are assessed to be exploited in the phase of engine design, whose contribution may be of great importance to reduce development costs and time-to-market of new technologies. (literal)
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