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Characterization of Impingement Dynamics of Single Droplet Impacting on a Flat Surface
Technical Paper
2019-01-0064
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The liquid fuel spray impingement onto surfaces occurs in both spark ignited and compression ignited engines. It causes a fundamental issue affecting the preparation of air-fuel mixture prior to the combustion, further, affecting engine performance and emissions. To better understand the underlying mechanism of spray interaction with a solid surface, the physics of a single droplet impact on a heated surface was experimentally investigated. The experimental work was conducted at four surface temperatures where a single diesel droplet was injected from a precision syringe pump with a specific droplet diameter and impact velocity. A high-speed camera was used to visualize the droplet impingement process. Images from the selected test condition (We = 52 to 925, Re = 789 to 3330 based on initial droplet impingement parameters) were analyzed to qualify the impinging outcomes and quantify the post-impingement characteristics. In particular, splashing characteristics and the effect of the surface temperature on the temporal evolution of the droplet spreading factor, dynamic contact angle, contact line velocity, as well as heat flux were studied. The hydrodynamics of single droplet impingement on a heated surface was also studied in terms of the transition conditions. Building on the experimental results of droplet impingement on a solid surface, a further comprehensive understanding on the splashing criteria was given and a new correlation of splashing threshold was found. The results comparison between the low and high surface temperatures showed that surface temperature introduced complexity to the analysis of droplet-surface impingement phenomena due to the change of liquid properties.
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Zhao, L., Ahuja, N., Zhu, X., Zhao, Z. et al., "Characterization of Impingement Dynamics of Single Droplet Impacting on a Flat Surface," SAE Technical Paper 2019-01-0064, 2019, https://doi.org/10.4271/2019-01-0064.Data Sets - Support Documents
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References
- Lefebvre , A.H. and McDonell , V.G. Atomization and Sprays CRC Press 2017
- Zhao , L. An Experimental and Computational Study of Fuel Spray Interaction: Fundamentals and Engine Applications 2018
- Zhao , L. , Moiz , A.A. , Naber , J. , Lee , S.-Y. et al. High-Speed Spray-To-Spray Collision Study on Two-Hole Impinging Jet Nozzles SAE Technical Paper 2015-01-0948 2015 10.4271/2015-01-0948
- Zhao , L. , Moiz , A.A. , Lee , S.-Y. , Naber , J. et al. Investigation of Multi-Hole Impinging Jet High Pressure Spray Characteristics under Gasoline Engine-Like Conditions SAE Technical Paper 2016-01-0847 2016 10.4271/2016-01-0847
- Zhu , X. , Zhao , L. , Zhao , Z. , Ahuja , N. et al. An Experimental Study of Diesel Spray Impingement on a Flat Plate: Effects of Injection Conditions ILASS-Europe 2017, 28th Conference on Liquid Atomization and Spray Systems 2017
- Moreira , A.L.N. , Moita , A.S. , and Panão , M.R. Advances and Challenges in Explaining Fuel Spray Impingement: How Much of Single Droplet Impact Research Is Useful? Progress in Energy and Combustion Science 36 5 554 580 2010 10.1016/j.pecs.2010.01.002
- Drake , M.C. , Fansler , T.D. , Solomon , A.S. , and Szekely , G. Piston Fuel Films as a Source of Smoke and Hydrocarbon Emissions from a Wall-Controlled Spark-Ignited Direct-Injection Engine SAE Technical Paper 2003-01-0547 2003 10.4271/2003-01-0547
- Zhao , L. , Zhao , Z. , Zhu , X. , Ahuja , N. et al. High Pressure Impinging Spray Film Formation Characteristics SAE Technical Paper 2018-01-0312 2018 10.4271/2018-01-0312
- Zhao , L. , Ahuja , N. , Zhu , X. , Zhao , Z. et al. Splashing Criterion and Topological Features of a Single Droplet Impinging on the Flat Plate SAE Technical Paper 2018-01-0289 2018 10.4271/2018-01-0289
- Zhao , L. , Potham , S.P. , and Lee , S.-Y. Numerical Study of Droplet Evaporation on a Flat Plate Using Volume of Fluid (Vof) Method International Multidimensional Engine Modeling User's Group Meeting 2017
- Potham , S.P. , Zhao , L. , and Lee , S.-Y. Numerical Study on Evaporation of Spherical Droplets Impinging on the Wall Using Volume of Fluid (Vof) Model SAE Technical Paper 2017-01-0852 2017 10.4271/2017-01-0852
- Bai , C.X. , Rusche , H. , and Gosman , A.D. Modeling of Gasoline Spray Impingement Atomization and Sprays 12 1-3 1 27 2002 10.1615/AtomizSpr.v12.i123.10
- Yarin , A.L. and Weiss , D.A. Impact of Drops on Solid Surfaces: Self-Similar Capillary Waves, and Splashing as a New Type of Kinematic Discontinuity Journal of Fluid Mechanics 283 141 173 1995 10.1017/S0022112095002266
- Mundo , C. , Sommerfeld , M. , and Tropea , C. Droplet-Wall Collisions: Experimental Studies of the Deformation and Breakup Process International Journal of Multiphase Flow 21 2 151 173 1995 10.1016/0301-9322(94)00069-V
- Stanton , D.W. and Rutland , C.J. Modeling Fuel Film Formation and Wall Interaction in Diesel Engines SAE Technical Paper 960628 1996 10.4271/960628
- Stanton , D.W. and Rutland , C.J. Multi-Dimensional Modeling of Thin Liquid Films and Spray-Wall Interactions Resulting from Impinging Sprays International Journal of Heat and Mass Transfer 41 20 3037 3054 1998 10.1016/S0017-9310(98)00054-4
- O'Rourke , P.J. and Amsden , A.A. A Particle Numerical Model for Wall Film Dynamics in Port-Injected Engines SAE Technical Paper 961961 1996 10.4271/961961
- O'Rourke , P.J. and Amsden , A.A. A Spray/Wall Interaction Submodel for the Kiva-3 Wall Film Model SAE Technical Paper 2000-01-0271 2000 10.4271/2000-01-0271
- Tamura , Z. and Tanasawa , Y. Evaporation and Combustion of a Drop Contacting with a Hot Surface Symposium (International) on Combustion 7 1 509 522 1958 10.1016/S0082-0784(58)80086-7
- Kang , B.S. and Lee , D.H. On the Dynamic Behavior of a Liquid Droplet Impacting upon an Inclined Heated Surface Experiments in Fluids 29 4 380 387 2000 10.1007/s003489900104
- Manzello , S. and Yang J.C 2002 10.1016/S0017-9310(02)00103-5
- Nukiyama , S. The Maximum and Minimum Values of the Heat Q Transmitted from Metal to Boiling Water under Atmospheric Pressure International Journal of Heat and Mass Transfer 9 12 1419 1433 1966 10.1016/0017-9310(66)90138-4
- Leidenfrost , J.G. On the Fixation of Water in Diverse Fire International Journal of Heat and Mass Transfer 9 11 1153 1166 1966 10.1016/0017-9310(66)90111-6
- Bai , C. and Gosman , A.D. Development of Methodology for Spray Impingement Simulation SAE Technical Paper 950283 1995 10.4271/950283
- Shen , J. , Graber , C. , Liburdy , J. , Pence , D. et al. Simultaneous Droplet Impingement Dynamics and Heat Transfer on Nano-Structured Surfaces Experimental Thermal and Fluid Science 34 4 496 503 2010 10.1016/j.expthermflusci.2009.02.003
- Šikalo , Š. , Wilhelm , H.-D. , Roisman , I.V. , Jakirlić , S. et al. Dynamic Contact Angle of Spreading Droplets: Experiments and Simulations Physics of Fluids 17 6 062103 2005 10.1063/1.1928828
- Vadillo , D.C. , Soucemarianadin , A. , Delattre , C. , and Roux , D.C.D. Dynamic Contact Angle Effects onto the Maximum Drop Impact Spreading on Solid Surfaces Physics of Fluids 21 12 122002 2009 10.1063/1.3276259
- Malgarinos , I. , Nikolopoulos , N. , Marengo , M. , Antonini , C. et al. Vof Simulations of the Contact Angle Dynamics during the Drop Spreading: Standard Models and a New Wetting Force Model Advances in Colloid and Interface Science 212 1 20 2014 10.1016/j.cis.2014.07.004
- Markt , D.P. , Zhao , L. , Zhu X. , Pathak A. et al. An Experimental and Computational Study of a Single Diesel Droplet Impinging on a Dry Surface ICLASS 2018, 14th Triennial International Conference on Liquid Atomization and Spray Systems
- Clavijo , C.E. , Crockett , J. , and Maynes , D. Hydrodynamics of Droplet Impingement on Hot Surfaces of Varying Wettability International Journal of Heat and Mass Transfer 108 1714 1726 2017 10.1016/j.ijheatmasstransfer.2016.12.076
- Markt , D.P. , Torelli , R. , Pathak , A. , Raessi , M. et al. Using a DNS Framework to Test a Splashed Mass Sub-Model for Lagrangian Spray Simulations SAE Technical Paper 2018-01-0297 2018 10.4271/2018-01-0297
- Otsu , N. A Threshold Selection Method from Gray-Level Histograms IEEE Transactions on Systems, Man, and Cybernetics 9 1 62 66 1979
- Schiaffino , S. and Sonin , A.A. Molten Droplet Deposition and Solidification at Low Weber Numbers Physics of Fluids 9 11 3172 3187 1997 10.1063/1.869434
- Lee , B.-B. , Ravindra , P. , and Chan , E.-S. New Drop Weight Analysis for Surface Tension Determination of Liquids Colloids and Surfaces A: Physicochemical and Engineering Aspects 332 2 112 120 2009 10.1016/j.colsurfa.2008.09.003
- Miers , S.A. , Anderson , C.L. , Blough , J.R. , and Inal , M.K. Impingement Identification in a High Speed Diesel Engine Using Piston Surface Temperature Measurements SAE Technical Paper 2005-01-1909 2005 10.4271/2005-01-1909
- Miers , S.A. 2004