Technical Briefs

Three-Dimensional Simulation of Gaseous Fuel Injection Through a Hybrid Approach

[+] Author and Article Information
L. Andreassi, A. L. Facci

Department of Mechanical Engineering, University of Rome Tor Vergata, Rome, 00133 Italy

S. Ubertini

Engineering Faculty, Department of Technology, University of Naples, ‘Parthenope’, Naples, 80100, Italy

J. Eng. Gas Turbines Power 132(7), 074502 (Apr 16, 2010) (4 pages) doi:10.1115/1.4000288 History: Received May 13, 2009; Revised July 07, 2009; Published April 16, 2010; Online April 16, 2010

Direct injection of gaseous fuel has emerged to be a high potential strategy to tackle both environmental and fuel economy requirements. However, since the electronic gaseous injection technology is rather new for automotive applications, limited experience exists on the optimum configuration of the injection system and the combustion chamber. To facilitate the development of these applications computer models are being developed to simulate gaseous injection, air entrainment, and the ensuing combustion. This paper introduces a new method for modeling the injection process of gaseous fuels in multidimensional simulations. The proposed model allows holding down grid requirements, thus, making it compatible with the three-dimensional simulation of an internal combustion engine.

Copyright © 2010 by American Society of Mechanical Engineers
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Grahic Jump Location
Figure 1

Comparison between numerical and experimental penetrations for a subsonic jet: (a) subsonic, (b) supersonic, (c) experimental and numerical jet shapes, and (d) 3D jet shape

Grahic Jump Location
Figure 2

Sensitivity analysis results: (a) influence of zcore, (b) influence of the 0D model length, and (c) influence of a



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