This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Influence of Nozzle Geometry Parameters on the Propagation of Fuel Spray Investigated with Linear and Non-Linear Regression Models
Technical Paper
2020-01-2114
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The nozzle geometry of fuel injectors has a strong influence on turbulences and pressure gradients within the nozzle flow. The flow situation at the nozzle outlet determines the spray propagation into the ambient atmosphere. This spray penetration is critical for gasoline direct injection (GDI) systems. When the spray penetration is too high, it can cause wall and cylinder impingement, which increases particle emissions drastically. However, prediction of fuel spray propagation in dependency of nozzle hole geometry is difficult due to the large difference in scale between the nozzle flow and the spray development. Because of this, spray measurements with varying nozzle geometry parameters and statistical evaluation of these datasets are useful for the future development of fuel injectors. In this study, shadowgraphy measurements of real-size single-hole glass nozzles are presented. The nozzles cover a wide range of geometry parameters relevant to a GDI system. The total penetration depth of the spray plume is evaluated for each nozzle with an injection pressure of 10 MPa. Based on this data, features are derived from the nozzle geometry which have a high correlation to the total penetration depth. These features are used to build a linear regression model in order to understand the basic influence of nozzle parameters on single plume spray propagation.
Recommended Content
Authors
Citation
Conrad, C. and Wensing, M., "Influence of Nozzle Geometry Parameters on the Propagation of Fuel Spray Investigated with Linear and Non-Linear Regression Models," SAE Technical Paper 2020-01-2114, 2020, https://doi.org/10.4271/2020-01-2114.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 |
Also In
References
- Gawlica , T. , Samenfink , W. , Schuenemann , E. and Koch , T. 2018 10.1007/978-3-658-23181-1_14
- Arcoumanis , C. , Flora , H. , Gavaises , M. , and Badami , M. 2000 https://doi.org/10.4271/2000-01-1249
- Mitroglou , N. , Gavaises , M. , Nouri , J.M. , and Arcoumanis , C. Cavitation Inside Enlarged and Real-Size Fully Transparent Injector Nozzles and Its Effect on Near Nozzle Spray Formation Droplet Impact Phenomena & Spray Investigations 2011
- Aleiferis , P.G. , Serras-Pereira , J. , Augoye , A. , Davies , T.J. et al. Effect of Fuel Temperature on In-Nozzle Cavitation and Spray Formation of Liquid Hydrocarbons and Alcohols from a Real-Size Optical Injector for Direct-Injection Spark-Ignition Engines International Journal of Heat and Mass Transfer 53 21-22 4588 4606 2010 10.1016/j.ijheatmasstransfer.2010.06.033
- Chaves , H. and Ludwig , C. Characterization of Cavitation in Transparent Nozzles Depending on the Nozzle Geometry Proceedings ILASS-Europe 2005
- Mamaikin , D. , Knorsch , T. , Rogler , P. , Leick , P. et al. Proceedings ILASS-Europe 2017. 28th Conference on Liquid Atomization and Spray Systems 2017
- Hermans , M. , Gottmann , J. , and Riedel , F. Selective, Laser-Induced Etching of Fused Silica at High Scan-Speeds Using KOH JLMN-Journal of Laser Micro/Nanoengineering 9 2 2014
- Wakuri , Y. , Fujii , M. , Amitani , T. , and Tsuneya , R. Studies on the Penetration of Fuel Spray in a Diesel Engine Bulletin of JSME 3 123 130 1960
- Naber , J.D. , and Siebers , D.L. Effect of Gas Density and Vaporization on Penetration and Dispersion of Diesel Sprays SAE Technical Paper 960034 1996 https://doi.org/10.4271/960034
- Desantes , J. , Payri , R. , Salvador , F. , and Soare , V. Study of the Influence of Geometrical and Injection Parameters on Diesel Sprays Characteristics in Isothermal Conditions SAE Technical Paper 2005-01-0913 2005 https://doi.org/10.4271/2005-01-0913
- Durst , A. , Wensing , M. , and Berrocal , E. Light Sheet Fluorescence Microscopic Imaging for the Primary Breakup of Diesel and Gasoline Sprays with Real-World Fuels Applied Optics 2018
- Heine , B. , Balewski , B. , and Tropea , C. Experimental Investigation of the Correlation between Nozzle Flow and Spray Using Laser Doppler Velocimeter, Phase Doppler System, High-Speed Photography, and X-ray Radiography 20 57 70 2010 10.1615/AtomizSpr.v20.i1.50
- Hellmann , R. , Jochmann , P. , Leick , P. , Stapf , K. , Schuenemann , E. and Thévenin , D. th