This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Modeling of Diesel Spray Dynamics and Comparison with Experiments
Annotation ability available
Sector:
Language:
English
Abstract
The capabilities of the Taylor analogy breakup (TAB) and wave breakup (WB) spray models, already existing in the literature, were evaluated in KIVA-II code. Also, a novel droplet deformation and breakup (DDB) model that takes into account the nonlinear effects which manifest at large deformation of the drops was incorporated and tested in KIVA-II.
The assessment of the three models was performed by using experimental measurements of tip penetration, spray cone angle and Sauter mean radius (SMR) in a cylindrical optically accessible closed vessel at room temperature and high gas density. High speed photography and laser light extinction techniques were simultaneously used to detect data along a n-heptane jet coming out from a single hole nozzle of 0.20 mm diameter supplied by PE-Bosch injection pump operating in single shot by electro-hydraulical device.
The KIVA calculations with TAB model in terms of penetration and SMR do not predict accurately the experiments. The WB and DDB models match well the experimental penetration data at low temperature and, at high temperature, the DDB model shows the highest penetration rate suggesting that it is more appropriate for simulating the spray dynamics for small engine like conditions in which the distance between the nozzle tip and the combustion chamber wall is very low.
Recommended Content
Authors
Citation
Allocca, L., Corcione, F., Fusco, A., Papetti, F. et al., "Modeling of Diesel Spray Dynamics and Comparison with Experiments," SAE Technical Paper 941895, 1994, https://doi.org/10.4271/941895.Also In
References
- Arai, M. Hiroyasu, H. Tabata, M. Shimizu, M. “Disintegrating Process and Spray Characterization of Fuel Jet Injected by a Diesel Nozzle” SAE Paper 840275 1984
- Kamimoto, T. Ahn, S-K. Kobayashi, H. Matsuoka, S. “Measurement of Droplets Diameter and Fuel Concentration in a Non Evaporating Diesel Spray by means of an Image Analysis of Shadow Photographs” Jour. of Phy. Chems. 57 90 95 1953
- Bower, G. Chang, S.K. Corradini, M.L. El-Beshbeeshy, M. Martin, J.K. Krueger, J. “Physical Mechanisms for Atomization of a Jet Spray: A Comparison of Models and Experiments” SAE Paper 881318 1988
- Cavaliere, A. Ragucci, R. D'Alessio, A. Noviello, C. “Analysis of Diesel Spray Characteristics through two-dimensional laser light scattering technique” Heat and Mass Transfer in Gasoline and Diesel Engines Spalding D.B. Afgan N.H. 317 329 Hemisphere Publishing Corp. 1989
- Yule, A.J. Watkins, A.P. “Measurement and modeling of dieselsprays” Atomization and Sprays 1 441 465 1991
- Bracco, F.V. “Modeling of Engine Sprays” SAE Paper 850394 1985
- Faeth, G.M. Progress Energy Combustion Science 3 191 1977
- Katsura, N. Saito, M. Senda, J. Fujimoto, H. “Characteristics of a Diesel Spray Impinging on a Flat Wall” SAE Paper 890264 1989
- Allocca, L. Corcione, E.F. De Angelis, F. “Disintegration and Dispersion of a Non-Evaporating Transient Diesel Spray: A Comparison of Models and Experiments” Proc. of 2nd Int. Conference on ‘Fluidmechanics, Combustion, Emissions and Reliability in reciprocating Engines’ 159 166 Capri 1992
- Al-Roub, M. Farrell, P.V. Naber, J. “Heat Transfer for Single and Multiple Droplet Impingement on Walls” Sixth International Conference on Liquid Atomization and Spray Systems 1994
- Coghe, A. Cossali, E.C. “Experimental Analysis of Wall-Spray Structure by Laser-Doppler Techniques” Proc. 6th International Symposium on ‘Applications of Laser Techniques to Fluid Mechanics’ Lisbon 1992
- Arcoumanis, C. Chang, J-C. “Heat transfer Between a Heated Plate and an impinging Transient” Experiments in Fluids 16 105 119 1993
- FIRE A General Purpose Fluid Mechanics Software Package by AVL LIST Gmbh release 1990
- SPEED-DC USERS MANUAL joint research council by computational dynamics limited 1991
- Amsden, A.A. O'Rourke, P.J. Butler, T.D. “KIVA-II: A Computer Program Program for Chemically Reactive Flows with Sprays” Report no. LA-11560 Los Alamos National Laboratory 1989
- Gonzalez, M.A. Lian, Z.W. Reitz, R.D. “Modeling Diesel Engine Spray Vaporization and Combustion SAE Paper 920579 1992
- Allocca, L. Corcione, F.E. Golini, S. papetti, F. “Assessment of Wall Heat Transfer Model for an Impinging Diesel Spray” ASME 1993 Atlanta, USA
- Corcione, F.E. Fusco, A. “Assessment of a Turbulent Mixing-Controlled Combustion Model in a Small D.I. Diesel Engine” Combustion Fundamentals & Applications Madison-Wisconsin June 1994
- O'Rourke, P.J. Amsden, A.A. “The Tab Method for Numerical Calculation of Spray Droplet Breakup” SAE Paper 872089 1987
- Patterson, M.A. Kong, S-C. Hampson, G.J. Reitz, R.D. “Modeling the Effects of Fuel Injection Characteristics on Diesel Engine Soot and NOx Emissions SAE Paper 940523 1994
- Ibrahim, E.A. Yang, H.Q. Przekwas, A.J. “Modeling of Spray Droplets Deformation and Breakup” AIAA J. Propulsion 9 4 651 654 1993
- Kamimoto, T. Yokota, H. Kobayashi, H. “A new Technique for the Measurement of Sauter mean Diameter of Droplets in Unsteady Dense Sprays” SAE Paper 890316 1989
- Allocca, L. Carrillo, P. Corcione, F.E. Setola, R. Rosastri, C. “Effect of Injection Parameters on Diesel-Spray Characteristics” Workshop and Exposition on ‘Fluidmechanics, Combustion, Emissions and Reliability in reciprocating Engines’ Capri April 1992