Browse > Article

MACROSCOPIC STRUCTURE AND ATOMIZATION CHARACTERISTICS OF HIGH-SPEED DIESEL SPRAY  

Park, S.-W. (Graduate School of Hanyang University)
Lee, C.-S. (Department of Mechanical Engineering, Hanyang University)
Publication Information
International Journal of Automotive Technology / v.4, no.4, 2003 , pp. 157-164 More about this Journal
Abstract
An experimental and numerical study was performed to investigate the macroscopic and microscopic atomization characteristics of high-speed diesel spray issued from the common-rail injection system. For the experiments, spray visualization system and a phase Doppler particle analyzer system were utilized to obtain the spray atomization characteristics such as the process of spray development, spray tip penetration, and SMD distribution. In order to analyze the process of spray atomization with KIVA-3 code, the TAB breakup model is changed to the KH-DDB competition model, which assumes the competition between the wave instability and droplet deformation causes the droplet breakup above the breakup length. The calculated results were also compared with the experiments in terms of spray tip penetration and SMD distribution. The results provide the process of spray development, axial and radial distribution of SMD, and calculated overall SMD as a function of time after start of injection.
Keywords
Atomization characteristics; Breakup model; KIVA code; Common-rail injection system;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 9  (Related Records In Web of Science)
연도 인용수 순위
1 Hwang, J. S., Ha, J. S. and No, S. Y. (2003). Spray characteristics of DME in conditions of common rail injection system (II). Int. J. Automotive Technology 4, 3,119-124
2 Hwang, S. S., Liu, Z. and Reitz, R. D. (1996). Breakup mechanism and drag coefficients of high-speed vaporizing liquid drops. Atomization and Sprays 6, 353-376   DOI
3 Park, S. W., Kim, H. J. and Lee, C. S. (2002). An experimental and numerical study on atomization characteristics of gasoline injector for direct injection engine. Proceedings of ilass-Americas 2002, 47-51
4 Park, S. W., Kim, H. J. and Lee, C. S. (2003). Investigation of atomization characteristics and prediction accuracy of hybrid models for high-speed diesel fuel Sprays. SAE Paper No. 2003-01-1045
5 Patterson, M. A. and Reitz, R. D. (1998). Modeling of the effects of fuel spray characteristics on diesel engine combustion and emission. SAE Paper No. 980131
6 Su, T. F., Patterson, M. A., Reitz, R. D. and Farrell, P. V. (1996). Experimental and numerical Studies of high pressure multiple injection sprays. SAE Paper No. 960861
7 Farrell, P. V., Chang, C. T. and Su, T. F. (1996). High pressure multiple injection spray characteristics. SAE Paper No. 960860
8 Ishikawa, N. and Niimura, K. (1996). Analysis of diesel spray structure using magnified photography and PIV. SAE Paper No. 960770
9 O'Rourke, P. J. and Amsden, A. A. (1987). The Tab method for numerical calculation of spray droplet breakup. SAE Paper No. 872089
10 Beale, J. C. and Reitz, R. D. (1999). Modeling spray atomization with the Kelvin-Helmholtz/Rayleigh-Taylor hybrid model. Atomization and Sprays 9, 623-650   DOI
11 Lee, C. S. and Park, S. W. (2002). An experimental and numerical study on fuel atomization characteristics of high-pressure diesel injection sprays. Fuel 81, 18, 2417-2423   DOI   ScienceOn
12 Allocca, L., Corcione, F. E., Fusco, A., Papetti, F. and Succi, S. (1994). Modeling of diesel spray dynamics and comparison with experiments. SAE Paper No. 941895
13 Yi, Y. and Reitz, R. D. (2002). A numerical model for jet primary breakup, Proceedings of ilass-Americas 2002, 25-29
14 Reitz, R. D. (1987). Modeling atomization processes in high-pressure vaporizing sprays. Atomisation and Spray TechnoIogy 3, 309-337
15 Ibrahim, E. A., Yang, H. Q. and Przekwas, A. J. (1993). Modeling of spray droplets deformation and breakup. J. Propulsion 9, 651-654   DOI   ScienceOn