Injector Dynamic and Nozzle Flow Features in Multiple Injection Modeling Mechanical and Industrial Department - University of Rome ROMA TRE

Format:

Conference/Event

Author/Creator:

Chiatti, G., author.

Conference Name:

8th International Conference on Engines for Automobiles (2007-09-16 : Capri (Naples), Italy)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Naples, ITALY Consiglio Nazionale delle Ricerche 2007

Summary:

This paper deals with the integrated modeling of a multiple injection common rail system. The aim of the numerical investigation is to capture the behavior of the multiple injections, in terms of electro-injector dynamic and nozzle flow development. In detail, the multiple injection investigation focuses on the transient phenomena of the injector, in order to evaluate their role on the definition of two aspects of the injection strategy, the fuel rate time evolution and their influence on the nozzle flow features. The model is based on the integration of two different commercial codes. In the simulations, a 0/1-D code has been used to analyze the complete injection system. The results obtained from the injection system simulation, in terms of injection needle lift, injection flow rate, pressure time evolution, have been used as boundary conditions for the 3-D CFD computation tool, in which the numerical investigation of the internal injector flow has been performed. Such an investigation is thought to highlight the exit flow features that play a significant role in the break-up process

Notes:

Vendor supplied data

Publisher Number:

2007-24-0038

Access Restriction:

Restricted for use by site license