This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Numerical Spray Modeling for Ultra Low Cost (ULC) Gasoline Engine
Technical Paper
2013-01-1606
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The main objective of this study is to determine the appropriate boundary conditions for the distribution of droplet sizes, speed of the fuel settling at the nozzle of the injector and droplet penetration by numerical simulation using STARCD for a 3-holes injector of ULC-GE. In this study, the Eulerian- Lagrangian approach has been used to model the multiphase domain. A new strategy has been adapted to model droplet initial conditions using the Rosin-Rammler distribution, which is determined by measurement of the Sauter Mean Diameter D₃₂ and the De Brouckere Mean Diameter D₄₃ by the MALVERN method. Further, these droplets undergo the phenomenon of atomization by secondary break-up method and evaporation in the Eulerian domain. The numerical model has been used to evaluate the effects of different initial condition of droplets by changing the discharge coefficient of the nozzle, and the initial droplet size distribution at the nozzle tip. The results of this study has been compared and analyzed for penetration length, droplet size distribution (at a distance of 75 mm from the tip of the nozzle) and visualization with the experimental results of specific injection mass flow rate of 5 mg/hole in 1.5 ms.
Recommended Content
Authors
Citation
Rathinam, B., Naithani, U., Delahaye, L., Ravet, F. et al., "Numerical Spray Modeling for Ultra Low Cost (ULC) Gasoline Engine," SAE Technical Paper 2013-01-1606, 2013, https://doi.org/10.4271/2013-01-1606.Also In
References
- Desportes A. , Zellat M. , Desoutter G. , Abouri D. , Liang Y. and Ravet F. Validation and Application of the Eulerian- Lagrangian spray atomization (ELSA) model for the Diesel Injection Simulation 20 th International Multidimensional Engine User's Meeting at the SAE Congres 2010 April 14 2010 DETROIT, MI
- Ganesan V. Internal Combustion Engine McGraw Hill Publication 978-0074621226 1995
- Stan , C. , Eichert , H. , Martorano , L. , and Bacciottini , C. Numerical Optimization of a Gasoline Direct Injection Concept Adapted for High Speed Two-Stroke Engines SAE Technical Paper 1999-01-3286 1999 10.4271/1999-01-3286
- Yamato , T. , Hayashida , M. , Sekino , H. , and Sugahara , K. Effect of Injection Timing on the Performance of a Manifold Injection Gas Engine SAE Technical Paper 1999-01-3295 1999 10.4271/1999-01-3295
- Larmi , M. , Rantanen , P. , Tiainen , J. , Kiijärvi , J. et al. Simulation of Non-Evaporating Diesel Sprays and Verification with Experimental Data SAE Technical Paper 2002-01-0946 2002 10.4271/2002-01-0946