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Modeling the Diesel Fuel Spray Breakup by Using a Hybrid Model
Technical Paper
1999-01-0226
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Diesel engine CFD simulation is challenged by the need to improve the accuracy in the spray modeling due to the strong influence played by spray dynamics on evaporation rate, flow field, combustion process and emissions.
This paper aims to present a hybrid model able to describe both primary and secondary breakup of high-dense high-pressure sprays. According to this approach, the model proposed by Huh and Gosman is used to compute the atomization of the liquid jet (primary breakup) while a modified version of the TAB model of O'Rourke and Amsden is used for the secondary breakup. The atomization model considers the jet turbulence at the nozzle exit and the growth of unstable wave on the jet surface. In order to validate the hybrid model, a free non-evaporating high-pressure-driven spray at engine like conditions has been simulated. The accuracy of the breakup time evaluation has been improved by tuning the TAB constant Ck according to the Pilch's experimental correlations. In the second part, a sensitivity analysis of the grid resolution has been carried out, showing that the cell size used in common I.C. engine computations are inadequate to accurately resolve the transient diesel-spray dynamics. Finally, the influence of the turbulence dispersion modeling on spray structure is discussed and a new approach is presented.
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Citation
Bianchi, G. and Pelloni, P., "Modeling the Diesel Fuel Spray Breakup by Using a Hybrid Model," SAE Technical Paper 1999-01-0226, 1999, https://doi.org/10.4271/1999-01-0226.Data Sets - Support Documents
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References
- Arcoumanis, C, Gavaises, M. French, B. “Effect of Fuel Injection on the Structure of Diesel Sprays,” SAE Paper 970799 1997
- Habchi, C Baritaud, T. et al. “Modeling Atomization and Break Up in High Pressure Diesel Sprays,” SAE Paper 970881 1997
- Patterson, M.A. Kong, S.C. Hampson, G.J. Reitz R.D. “Modeling the Effects of Fuel Injection Characteristics on Diesel Soot and NOx Formation SAE Paper 940523 1994
- Patterson, M. A. Reitz R. D. “Modeling the Effects of Fuel Sprays Characteristic on Diesel Engine Combustion and Emission” SAE Paper 980131 1998
- Han, Z. Uludogan, Ali Hampson, G.J Reitz, R. D. “Mechanism and NOx Emissions Reduction Using Multiple Injection in a Diesel Engine” SAE Paper 960633 1996
- Allocca, L. Belardini, P. Bertoli, C. Corcione, F. De Angelis, F. “Experimental and Numerical Analysis of a Diesel Spray” SAE Paper 920576 1992
- Fath, A. Munch, K.U. Leipertz, A. “Spray Break-Up Process of Diesel Fuel Investigated Close to the Nozzle” Proceedings of ICLASS-'97 August 18-22 Seoul, Korea 1997
- Reitz, R. D. Diwakar, R. “Structure of High-Pressure Fuel Sprays” SAE Paper 870598 1987
- Wiezerba, A. Takayama, K “Experimental Investigation of Aerodynamic Breakup of Liquid Drops” AIAA J. 26 1329 1335 1988
- Dombrowski, N. Hooper, P.C. “The Effect of Ambient Density on Drop Formation in Sprays,” Chem. Eng. Sci. 17 291 305 1962
- Faeth, G. M. “Structure and atomization properties of dense turbulent sprays” Proceed. 23-rd Symp. (int.) on Combustion, The Combustion Institute Pittsburgh,PA 1345 1352 1990
- Ruff, G. A. Wu, P.-K Bernal, L.P. Faeth, G.M. “Continuous and dispersed-phase structure of dense non-evaporating pressure atomized sprays” J. Prop. Power 8 280 89 1992
- Levebre, H.A. Atomization and Sprays Combustion: An International Series Hemisphere Corporation 1989
- Bayel, L. Orzechowski, Z. Liquid Atomization Taylor&Fransis 1993
- Reitz, R. D. Bracco, F.V “Mechanism of Atomitazion of Liquid Jet” Phys. Fluids 25 2 1730 1741 1982
- Zhen Huang Yiming Shao Shiga Seiichi Nakamura Hisao Karasawa Takao “The Orifice Flow Pattern, Pressure Characteristics, and their Effects on Atomization of Fuel Containing Dissolved Gas” Atomization and Sprays 4 123 133 1994
- Park Byung Suh Lee Sang Yong “An experimental investigation of the flash atomization mechanism” Atomization and Sprays 4 159 179 1994
- Arai M. “Break-up mechanism of a high speed liquid jet and control methods fore a spray behavior” Proceed. Int. Symposium on Advanced Spray Combustion July 6-8 Hiroshima, Japan 1994
- Reitz, R. D. Bracco, F. V. “Mechanism of Breakup of Round Liquid Jets,” Encyclopedia of Fluid Mechanics Gulf Publishing Company Houston 1986
- Reitz, R.D. “Modeling Atomization Process in High-Pressure Vaporing Sprays,” Atomization and Spray Technology 3 309 337 1987
- Hsiang, L.-P. Faeth, G.M. “Near-Limit Drop Deformation and Secondary Breakup” J. Multiphase and Flow 18 5 635 652 1992
- Pilch, M. Erdam, C.A. “Use of breakup time data and velocity history data to predict the maximum size of stable fragments foe acceleration - induced breakup of a liquid drop” Int, J. Multiphase Flow 13 6 741 757 1987
- O'Rourke, P. J. Amsden, A. A. “The Tab Method for Numerical Calculation of Droplet Breakup” SAE Paper 870289 1987
- Amsden, A.A. O'Rourke, P.J. Butler, T.D. “Kiva-II A Computer Program for Chemically Reactive Flows with Sprays,” Los Alamos National Labs 1989
- Amsden, A.A. O'Rourke, P.J. Butler, T.D. “Kiva-3: A KIVA Program with Bock-Structured Mesh for Complex Geometries,” Los Alamos National Labs 1993
- Beatrice, C. Belardini, P. Bertoli, C. Cameretti, M.C. Cirillo, N.C. “Fuel Jets Model for Multidimensional Diesel Combustion Calculation: an Upadate” SAE Paper 950086 1995
- Huh, K.Y. Gosman, A.D. “A Phenomenological Model of Diesel Spray Atomization” Proceedings of The International Conference on Multiuphase Flows September 24-27 Tsukuba, Japan 1991
- Bo, T. Clerides, D. Gosman, A. D. Theodossopoulos, P. “Prediction of the Flow and Spray Processes in an Automobile DI Diesel Engine SAE Paper 970882
- Liu, A.B. Mather, D. Reitz R.D. “Modeling the effects of drop drags and breakup on fuel sprays” SAE Paper 930072
- Su, T.F. Patterson, M.A. Reitz, R.D. Farrel, P.V. “Experimental and Numerical Studies of High Pressure Multiple Injection Sprays” SAE Paper 960861 1996
- Taylor, G. I. “The Instabilities of Liquid Surfaces when Accelerated in a Direction Perpendicular to Their Planes,” The Scientific Papers of G.I. Taylor Batchelor G.K. III University Press Cambridge 1983
- Beatrice, C. Belardini, P. Bertoli, C. Cameretti, M.C. Del Giacomo, N. “An Assessment of predictivity of CFD Computations and Pollutant Formation in D.I. diesel Engines” SAE Paper 962055 1996
- Assanis, D. Gavaises, M. Bergeles, G. “Calibration and Validation of the Taylor Analogy Breakup Model for Diesel Spray Calculation” ASME Paper 93-ICE-N 1993
- Taskinen, P. et al. CFD Based Combustion Simulation of a Large Medium Speed Diesel Engine” Proceedings of The 3 rd International Conference ICE Septemper 16-19 Capri, Italy 1997
- Tanner, F.X. Weisser, G. “Simulation of Liquid Jet Atomization of Fuel Sprays by Means of a Cascade Drop Breakup Model” SAE Paper 980808 1998
- Weisser, G. Tanner, F.X. Boulouchos, K “Towards CRDF-Simulation of Large Diesel Engines: Modeling Approach for Key Processes” Proceed. 3-rd Int. ICE Conference Capri, Italy Sep. 17-20 1997
- Ibrahim, E.A. Yang, H.Q. Przekwas, A.J. “Modeling of Spray Droplet Deformation and Breakup,” AIAA J. Propulsion and Power 9 651 654 1993
- Ranger, A.A. Nicholls, J.A. “The Aerodynamic shattering of liquid drops'” AIAA J. 7 285 290 1969
- Abraham, J. “What is the Adequate Resolution in the Numerical Computation of Transient Jets?” SAE Paper, 970051 1997
- Abraham, J. Magi, V. “Computations of Transient Jets: RNG K-ε Model Versus Standard k-ε Model” SAE Paper 970885 1997
- Gonzales, D. Borman, M. A. Reitz R. D. “Modeling Diesel Engine Spray Vaporization and Combustion” SAE Paper 920579 1992
- Nakayama, A. “PC-Aided Numerical Heat Transfer and Convective Flow” CRC Press 1994 Tokio
- University of Wisconsin 1998
- Bianchi, G.M. “Breakup di spray diesel interagente con un flusso turbolento (Spray Diesel Breakup in turbulent flows)” University of Bologna, D.I.E.M. 1998