CFD Numerical Reconstruction of the Flash Boiling Gasoline Spray Morphology 2020-24-0010
The numerical reconstruction of the liquid jet generated by a multi-hole injector, operating in flash-boiling conditions, has been developed by means of a Eulerian- Lagrangian CFD code and validated thanks to experimental data collected with schlieren and Mie scattering imaging techniques. The model has been tested with different injection parameters in order to recreate various possible engine thermodynamic conditions. The work carried out is framed in the growing interest present around the gasoline direct-injection systems (GDI). Such technology has been recognized as an effective way to achieve better engine performance and reduced pollutant emissions. High-pressure injectors operating in flashing conditions are demonstrating many advantages in the applications for GDI engines providing a better fuel atomization, a better mixing with the air, a consequent more efficient combustion and, finally, reduced tailpipe emissions.
Citation: Duronio, F., De Vita, A., Allocca, L., Montanaro, A. et al., "CFD Numerical Reconstruction of the Flash Boiling Gasoline Spray Morphology," SAE Technical Paper 2020-24-0010, 2020, https://doi.org/10.4271/2020-24-0010. Download Citation
Author(s):
Francesco Duronio, Angelo De Vita, Luigi Allocca, Alessandro Montanaro, Stefano Ranieri, Carlo Villante
Affiliated:
Universita degli Studi dell Aquila, Univ. de L'Aquila - Istituto Motori, Istituto Motori CNR
Pages: 13
Event:
Conference on Sustainable Mobility
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Combustion and combustion processes
Engines
Computational fluid dynamics
Gasoline
Emissions
Exhaust pipes
Fuel injection
Imaging and visualization
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