This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Modeling of Narrow-Angle Sprays Using a Spray Model Based on the Moments of the Droplet Size Distribution
Technical Paper
2013-01-1593
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Recently a spray model that uses the moments of the droplet size distribution functions to represent the complete hydrodynamics characteristics of spray flow has been shown to be an applicable tool for the analysis of engine sprays. The primary advantage of the model is that it is less computationally intensive compared to models that track droplet parcels. The main purpose of the current study is to evaluate the capability of using the model for the predictions of narrow-angle sprays at fuel injection pressure cases of up to 770 bar and spray cone angles of just 30 from two different sets of experimental data, with the results being characterized by spray tip penetration and sauter mean diameter values. The effects of uncertain input parameters, like the collision constant in the droplet collision model, were assessed before the simulation of the experimental conditions. The numerical results indicate that the spray model is (i) applicable to narrow-angle, high pressure sprays, (ii) drop size data are reasonably captured, (iii) the spray tip penetration is under-predicted during late injection times, and (iv) a combination of different momentum models, and droplet collision models might need to be investigated to improve the model.
Recommended Content
Technical Paper | Modeling Transient Fuel Effects with Variable Cam Timing |
Technical Paper | DISI Spray Modeling Using Local Mesh Refinement |
Technical Paper | A Flexible Fuel Injection Simulation |
Authors
Citation
G. Emekwuru, N., "Modeling of Narrow-Angle Sprays Using a Spray Model Based on the Moments of the Droplet Size Distribution," SAE Technical Paper 2013-01-1593, 2013, https://doi.org/10.4271/2013-01-1593.Also In
References
- Harlow , F.H. , and Amsden , A.A. Numerical calculation of multiphase fluid flow J. Comp. Phys. 17 1 19 52 1975 10.1016/0021-9991(75)90061-3
- Bracco , F.V. Application of Steady-State Spray Equations to Combustion Modeling AIAA Journal 12 11 1534 1540 1974 10.2514/3.49541
- Adeniji-Fashola , A. , and Chen , C.P. Modeling of confined turbulent fluid-particle flows using Eulerian and Lagrangian schemes Int. J. Heat Mass Transf. 33 4 691 701 1990 10.1016/0017-9310(90)90168
- Mostafa , A.A. , and Mongia , H.C. On the modeling of turbulent evaporating sprays: Eulerian versus Lagrangian approach Int. J. Heat Mass Transf. 30 12 2583 2593 1987 10.1016/0017-9310(87)90139-6
- Gosman , A.D. , and Clerides , D. Diesel spray modeling: a review Proceedings of ILASS-Europe Florence, Italy 1997
- Crowe , C.T. , Sharma , M.P. , and Stock , D.E. The Particle-Source-In-Cell (PSI Cell) Model for for Gas/Droplet Flows ASME J. Fluid Eng. 99 2 325 332 1977 10.1115/1.3448756
- Dukowicz , J.K. A particle-fluid numerical model for liquid sprays J. Comp. Phys. 35 2 229 233 1980 10.1016/0021-9991(80)90087-x
- Emekwuru , N.G. , and Watkins , A. P. Analysis of a two-fluid sprayer and its use to develop the number size distribution moments spray model. Part II: A computational analysis Atomization and Sprays 20 8 653 672 2010 10.1615/AtomizSpr.v20.i8.10
- Beck , J.C. , and Watkins , A.P. On the Development of Spray sub-models based on the Droplet size moments J. of Comp. Physics 182 2 596 621 2002 10.1006/jcph.20027186
- O'Rourke , P. J. , and Bracco , F. V. Modelling of Drop Interactions in thick Sprays and Comparison with Experiment Stratified Charge Auto Engines Conf. IMechE London 1980 0-85298-4693
- Allocca , L. , Belardini , P. , Bertoli , C. , Corcione , F. et al. Experimental and Numerical Analysis of a Diesel Spray SAE Technical Paper 920576 1992 10.4271/920576
- Dan , T. , Takagishi , S. , Senda , J. , and Fujimoto , H. Effect of Ambient Gas Properties for Characteristics of Non-Reacting Diesel Fuel Spray SAE Technical Paper 970352 1997 10.4271/970352
- Beck , J.C. , and Watkins , A.P. The simulation of fuel sprays using the moments of the drop number size distribution Intl. J. of Eng. Research 5 1 1 24 2004 10.1243/146808704772914219
- Ranz , W.E. Some experiments on orifice sprays Can. J. Chem. Eng. 36 4 175 181 1958 10.1002/cjce.5450360405
- Emekwuru , N. A Number Size Distribution Moments Based Solid Cone Diesel Spray Model: Assessment of Droplet Breakup Models Based on Different Distribution Functions SAE Technical Paper 2012-01-1260 2012 10.4271/2012-01-1260