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A Proposal for Diesel Spray Model Using a TAB Breakup Model and Discrete Vortex Method  

Yeom, Jeong-Kuk (Mechanical and Aerospace Engineering Department, Graduate School of Seoul National University)
Lee, Myung-Jun (Automotive Engineering Department, Yang-san College)
Chung, Sung-Sik (Mechanical Engineering Department, Dong-A University)
Ha, Jong-Yul (Mechanical Engineering Department, Dong-A University)
Jiro Senda (Department of Mechanical Engineering, Doshisha University)
Hajime Fujimoto (Department of Mechanical Engineering, Doshisha University)
Publication Information
Journal of Mechanical Science and Technology / v.16, no.4, 2002 , pp. 532-548 More about this Journal
Abstract
A hybrid model consisting of a modified TAB (Taylor Analogy Breakup) model and DVM (Discrete Vortex Method) is proposed for numerical analysis of the evaporating spray phenomena in diesel engines. The simulation process of the hybrid model is divided into three steps. First, the droplet breakup of injected fuel is analyzed by using the modified TAB model. Second, spray evaporation is calculated based on the theory of Siebers'liquid length. The liquid length analysis of injected fuel is used to integrate the modified TAB model and DVM. Lastly, both ambient gas flow and inner vortex flow of injected fuel are analyzed by using DVM. An experiment with an evaporative free spray at the early stage of its injection was conducted under in-cylinder like conditions to examine an accuracy of the present hybrid model. The calculated results of the gas jet flow by DVM agree well with the experimental results. The calculated and experimental results all confirm that the ambient gas flow dominates the downstream diesel spray flow.
Keywords
Diesel Spray; Breakup Model; Hybrid Model; Vortex; Laser-Induced Fluorescence Technique;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Ely, J. F. and Huber, M. L., 1992, 'NIST Thermophysical Properties of Hydrocarbon Mixtures Database (SUPERTRAPP) Version 1.0 Users' Guide, National Institute of Standards and Technology'
2 Amsden, A. A., 1997, 'KIVA-3V : A Block-Structured KIVA Program for Engines with Vertical or Canted Valves,' Los Alamos National Laboratory report LA-13313-MS
3 Azetsu, A., Dodo, S., Someya, T. and Oikawa, C., 1990, 'A Study on the Structure of Diesel Spray (2-D Visualization of the Non-Evaporating Spray),' COMODIA 90 (in Kyoto), pp. 199-204
4 Baritaud, T. A., Heinze, T. A. and Le Coz, J. F., 1994, 'Spray and Self-Ignition Visualization in a DI Diesel Engine,' SAE Paper, No. 940681
5 Chorin, A. J., 1973, 'Numerical Study of Slightly Viscous Flow,' J. Fluid Mech., Vol. 57, Part 4, pp. 785-796   DOI
6 Dan, T., Takagishi, S., Oishi N., Senda J. and Fujimoto, H., 1996, 'The Study of the Spary Structure in the High Injection Pressre,' JSME 62-597, pp. 2079-2085
7 Dan, T., Takagishi, S., Oishi N., Senda, J. and Fujimoto, H., 1996, 'The Effect of Ambient Density on the Spray Stucture,' JSME 62-599, pp. 2867-20873
8 Dan, T., Takagishi, S., Senda, J. and Fujimoto, H., 1997, 'Organized Structure and Motion in Diesel Spray,' SAE Paper, No. 970641
9 Espey, C. and Dec, J. E., 1994, 'The Effect of TDC Temperature and Density on the Liquid-Phase Fuel Penetration in a D. I. Diesel Engine,' SAE Paper, No. 952456
10 Espey, C., Dec, J. E., Litzinger, T. A. and Santavicca, D. A., 1994, 'Planar Laser Rayleigh Scattering for Quantitative Vapor-Fuel Imaging in a Diesel Jet,' COMBUSTION AND FLAME, 109: 65-86, pp. 65-86   DOI   ScienceOn
11 Ohe, S., 1985, 'Estimate Method of Property Constants for Beginner,' Nikkan Engineering Paper Corp., pp. 215-221 (in Japanese)
12 O'Rourke, P. J. and Amsden, A. A., 1987, 'The TAB Method for Numerical Calculation of Spray Drop Breakup,' SAE Paper, No. 872089
13 Rosenhead, L., 1931, 'The Formation of Vortices from a Surface of Discontinuity,' Proc. R. Soc. Lond., A-134, pp. 170-192   DOI
14 Espay, C., Dec, J. E., Litzinger, T. A. and Santavicca, D. A., 1994, 'Quantitative 2-D Fuel Vapor Concentration Imaging in a Firing D. I. Diesel Engine Using Planar Laser-Induced Rayleigh Scattering,' SAE Paper, No. 940682
15 Senda, J., Tanabe, Y. and Fujimoto, H., 1996, 'Visualization and Quantitative Analysis on Fuel Vapor Concentration in Diesel Spray,' Unsteady Combustion (Kluwer Academic Pub.), pp. 283-294
16 Senda, J., Kanda, T., Al-Roub, M., Farrell, P. V., Fukami, T. and Fujimoto, H., 1997, 'Modeling Spray Impingement Considering Fuel Film Formation on the Wall,' SAE Paper, No. 970047
17 Senda, J., Dan, T., Takagishi, S., Kanda, T. and Fujimoto, H., 1997, 'Spray Characteristics of Non-Reacting Diesel Fuel Spray by Experiments and Simulations with KIVA Ⅱ Code,' Proceedings of ICLASS-'97 (in Seoul), pp. 38-45
18 Yamane, Y., Kamimoto, T., Kosaka, H. and Kobayashi, H., 1994, 'Numerical Simulation of Entrainment of an Unsteady 2-D Turbulent Jet,' Transaction of JSME(B), Vol. 60, No. 572, pp. 1457-1462, (in Japanese)   DOI
19 Amsden, A. A., Ramshow, J. D., O'Rourke, P. J. and Dukowiez, J. K., 1985, 'KIVA : Acomputer Program for Two-and Three-Dimensional Fluid Flows with Chemical Reactions and Fuel Sprays,' Los Alamos National Laboratory report LA-10254-MS
20 Ahmadi-Befrui, B., Uchil, N., Gosman, A. D. and Issa, R., 1996, 'Modeling and Simulation of Thin Liquid Films Formed by Spray-Wall Interaction,' SAE Paper, No. 960627
21 Amsden, A. A., O'Rourke, P. J. and Butler, T. D., 1989, 'KIVA-Ⅱ : A Computer Program for Chemically Reactive Flows and Sprays,' Los Alamos National Laboratory report LA-11560-MS
22 Amsden, A. A., 1993, 'KIVA-3 : A KIVA Program with Block-Structured Mesh for Complex Geometries,' Los Alamos National Laboratory report LA-12503-MS
23 Kamimoto, T., Yamane, Y., Kosaka, H. and Kobayashi, H., 1993, 'Numerical Simulation of Turbulent Mixing in a Transient Jet,' SAE Paper 932657
24 Hodges, J. T., Baritaud, T. A. and Heinze, T. A., 1991, 'Planar Liquid and Gas Fuel and Droplet Size Visualization in a DI Diesel Engine, SAE Paper, No. 910726
25 Kiya, M., Sasaki, K. and Arie, M., 1982, 'Discrete-Vortex Simulation of a Turbulent Separation Bubble,' J. Fluid Mech., Vol. 120, pp. 219-244   DOI
26 Kikuta, K., Cray, B., Chikahisa, T., Murayama, T. and Martin, J., 1992, 'Necessary Mesh Conditions for Accurate KIVA Calculation,' 10th Internal Combustion Engine Symposium (in Japan), pp. 331-336
27 Kosaka, H., Suzuki, T. and Kamimoto, T., 1995, 'Numerical Simulation of Turbulent Dispersion of Fuel Droplets in an Unsteady Spray via Discrete Vortex Method,' SAE Paper 952433
28 Melton, L. A. and Verdieck, J. F., 1984, 'Vapor/Liquid Visualization in Fuel Sprays,' 20th Sympo. (International) on Combustion/The Combustion Institute, pp. 1283-1290
29 Nagano, S., Naito, M. and Tanaka, H., 1981, 'A Numerical Analysis of Two Dimensional Flow Past Rectangular Prisms by a Discrete Vortex Method,' Transactions of JSME(B), Vol. 47, No. 413, pp. 32-43   DOI
30 Shimizu, S., 1985, 'An Analysis of a Two-Dimensional Jet by the Discrete Vortex Simulation,' Bull. JSME, B-51-472, pp. 3852-3859
31 Siebers, D. L., 1998, 'Liquid-Phase Fuel Penetration in Diesel Spray,' SAE Paper No. 980809
32 Siebers, D. L., Charles, J. and Higgings, B. S., 'Measurements of Fuel Effects on Liquid-Phase Penetration in DI Sprays,' SAE Paper No. 1999-01-0519
33 Siebers, D. L., 1999, 'Scaling Liquid-Phase Fuel Penetration in Diesel Sprays Based on Mixing-Limited Vaporization,' SAE Paper No. 1999-01-0528
34 Melton, L. A., 1983, 'Spectrally Separated Fluorescence Emissions for Diesel Fuel Droplets and Vapor,' Applied Optics, Vol. 22, No. 14, pp. 2224-2226   DOI   ScienceOn
35 Senda, J., Kobayashi, M., Iwashita, S. and Fujimoto, H., 1994, 'Modeling of Diesel Spray Impinging on a Flat Wall,' SAE Paper No. 941894
36 Sakata, H., Adachi, T. and Inamura T., 1983, 'A Numerical Analysis of Unsteady Separated Flow by Discrete Vortex Model (1st Report, Flow Around a Square Prism),' Transactions of JSME(B), Vol. 49, No. 440, pp. 801-808 (in Japanese)   DOI