This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Mixture Model Approach for the Study of the Inner Flow Dynamics of an AdBlue Dosing System and the Characterization of the Near-Field Spray
Technical Paper
2021-01-0548
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Event:
SAE WCX Digital Summit
Language:
English
Abstract
Selective Catalytic Reduction stands for an effective methodology for the reduction of NOx emissions from Diesel engines and meeting current and future EURO standards. For it, the injection of Urea Water Solution (UWS) plays a major role in the process of reducing the NOx emissions. A LES approach for turbulence modelling allows to have a description of the physics which is a very useful tool in situations where experiments cannot be performed. The main objective of this study is to predict characteristics of the flow of interest inside the injector as well as spray morphology in the near field of the spray. For it, the nozzle geometry has been reconstructed from X-Ray tomography data, and an Eulerian-Eulerian approach commonly known as Mixture Model has been applied to study the liquid phase of the UWS with a LES approach for turbulence modeling. The injector unit is subjected to typical low-pressure working conditions. The results extracted from it comprise parameters that characterize the hydraulic behavior as well as jet intact length. The conclusions drawn from the model depict differences in the flow behavior between the injector three orifices, with an under-prediction of nozzle and spray characteristics of LES formulation with respect to traditional RANS turbulence treatment.
Recommended Content
Authors
Topic
Citation
Payri, R., Bracho, G., Marti-Aldaravi, P., and Marco-Gimeno, J., "Mixture Model Approach for the Study of the Inner Flow Dynamics of an AdBlue Dosing System and the Characterization of the Near-Field Spray," SAE Technical Paper 2021-01-0548, 2021, https://doi.org/10.4271/2021-01-0548.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 | ||
| Unnamed Dataset 5 |
Also In
References
- Reitz , R.D. et al. IJER Editorial: The Future of the Internal Combustion Engine Int. J. Engine Res. 21 1 146808741987799 2019 10.1177/1468087419877990
- van Helden , R. , Verbeek , R. , Willems , F. , and van der Welle , R. Optimization of Urea SCR deNOx Systems for HD Diesel Engines Mar. 2004 https://doi.org/10.4271/2004-01-0154
- Zheng , G. , Fila , A. , Kotrba , A. , and Floyd , R. Investigation of Urea Deposits in Urea SCR Systems for Medium and Heavy Duty Trucks Oct. 2010 https://doi.org/10.4271/2010-01-1941
- Yim , S.D. et al. Decomposition of Urea into NH3 for the SCR Process Ind. Eng. Chem. Res. 43 16 4856 4863 2004 10.1021/ie034052j
- Hartley , R. , Henry , C. , Eakle , S. , and Tonzetich , Z. Deposit Reduction in SCR Aftertreatment Systems by Addition of Ti-Based Coordination Complex to UWS 2019 https://doi.org/10.4271/2019-01-0313
- Han , J. , Lee , J. , Oh , Y. , Cho , G. , and Kim , H. Effect of UWS Injection at Low Exhaust Gas Temperature on NOx Removal Efficiency of Diesel Engine Int. J. Automot. Technol. 18 6 951 957 2017 10.1007/s12239-017-0093-6
- Bode , M. , Diewald , F. , Broll , D.O. , Heyse , J.F. , Le Chenadec , V. , and Pitsch , H. 2014 https://doi.org/10.4271/2014-1-1427
- Payri , R. , Viera , J.P. , Gopalakrishnan , V. , and Szymkowicz , P.G. The Effect of Nozzle Geometry Over Internal Flow and Spray Formation for Three Different Fuels Fuel 183 20 33 2016 https://doi.org/10.1016/j.fuel.2016.06.041
- Payri , R. , Viera , J.P. , Gopalakrishnan , V. , and Szymkowicz , P.G. The Effect of Nozzle Geometry Over the Evaporative Spray Formation for Three Different Fuels Fuel 188 645 660 2017 10.1016/j.fuel.2016.06.041
- Kapusta , Ł.J. , Sutkowski , M. , Zommara , M.R.R. , and Teodorczyk , A. Characteristics of Water and Urea-Water Solution Sprays Catalysts 9 750 750 2019 10.3390/catal9090750
- Ishimoto , J. , Sato , F. , and Sato , G. Computational Prediction of the Effect of Microcavitation on an Atomization Mechanism in a Gasoline Injector Nozzle J. Eng. Gas Turbines Power 132 8 Aug. 2010 10.1115/1.4000264
- Ling , Y. , Zaleski , S. , and Scardovelli , R. Multiscale Simulation of Atomization with Small Droplets Represented by a Lagrangian Point-Particle Model Int. J. Multiph. Flow 76 122 143 2015 https://doi.org/10.1016/j.ijmultiphaseflow.2015.07.002
- Edelbauer , W. , Kolar , P. , Schellander , D. , Pavlovic , Z. , and Almbauer , R. Numerical Simulation of Spray Break-Up from Cavitating Nozzle Flow by Combined Eulerian-Eulerian and Volume-of-Fluid Methods Int. J. Comput. Methods Exp. Meas. 6 2 314 325 2018 10.2495/CMEM-V6-N2-314-325
- Naik , A. , Höltermann , M. , Lauer , E. , Blodig , S. , and Dinkelacker , F. Modeling of Air-Assisted Spray Breakup of Urea-Water Solution Using a Volume-of-Fluid Method At. Sprays 29 6 553 576 2019 10.1615/AtomizSpr.2019030987
- Slaney , A.C.K.M. Principles of Computerized Tomographic Imaging New York, NY IEEE Press 1988
- Duke , D.J. et al. High-Resolution X-Ray and Neutron Computed Tomography of an Engine Combustion Network Spray G Gasoline Injector SAE Int. J. Fuels Lubr. 10 2 328 343 2017 10.4271/2017-01-0824
- B. T. M Computed Tomography Heidelberg, Germany Springer Science & Business Media 2008
- Payri , R. , Bracho , G. , Martí-Aldaraví , P. , and Marco-Gimeno , J. Computational Study of Urea-Water Solution Sprays for the Analysis of the Injection Process in SCR-like Conditions Ind. Eng. Chem. Res. 59 41 18659 18673 Oct. 2020 10.1021/acs.iecr.0c02494
- Convergent Science CONVERGE 2.4 Manual Middleton 2017
- Germano , M. , Piomelli , U. , Moin , P. , and Cabot , W.H. A Dynamic Subgrid-Scale Eddy Viscosity Model Phys. Fluids A Fluid Dyn. 3 7 1760 1765 Jul. 1991 10.1063/1.857955
- Werner , H. and Wengle , H. Large-Eddy Simulation of Turbulent Flow Over and Around a Cube in a Plate Channel BT - Turbulent Shear Flows 1993 155 168
- Balabel , A. Numerical Modeling of Turbulence-Induced Interfacial Instability in Two-Phase Flow with Moving Interface Appl. Math. Model. 36 8 3593 3611 2012 https://doi.org/10.1016/j.apm.2011.11.006
- Kleissl , J. , Kumar , V. , Meneveau , C. , and Parlange , M.B. Numerical Study of Dynamic Smagorinsky Models in Large-Eddy Simulation of the Atmospheric Boundary Layer: Validation in Stable and Unstable Conditions Water Resour. Res. 42 6 Jun. 2006 10.1029/2005WR004685
- Payri , R. , Bracho , G. , Gimeno , J. , and Moreno , A. A Methodology for the Hydraulic Characterization of a Urea-Water Solution Injector by Means of Spray Momentum Measurement 29th European Conference on Liquid Atomization and Spray Systems September 2019 2-4
- Mohapatra , C.K. Collaborative Investigation of the Internal Flow and Near-Nozzle Flow of an Eight-Hole Gasoline Injector (Engine Combustion Network Spray G) Int. J. Engine Res. 1468087420918449 Jun. 2020 10.1177/1468087420918449
- Pope , S.B. Ten Questions Concerning the Large-Eddy Simulation of Turbulent Flows New J. Phys. 6 35 2004 10.1088/1367-2630/6/1/035
- Patankar , V.S.V. Numerical Heat Transfer and Fluid Flow Hemisphere Publishing Corporation Washington - New York - London 1980 https://doi.org/10.1002/cite.330530323
- Lefebvre , A.H. , and McDonell , V.G. Atomization and Sprays Second Boca Raton, FL CRC Press 2017
- Lin , S.P. , and Reitz , R.D. Drop and Spray Formation from a Liquid Jet Annu. Rev. Fluid Mech. 30 1 85 105 Jan. 1998 10.1146/annurev.fluid.30.1.85