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Analysis of the In-Cylinder Flow Field / Spray Injection Interaction within a DISI IC Engine Using High-Speed PIV
Technical Paper
2011-01-1288
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This study presents measurements of transient flow field and spray structures inside an optically accessible DISI (direct-injection spark-ignition) internal combustion engine. The flow field has a direct effect upon mixture and combustion processes. Given the need to increase the efficiency and performance of modern IC engines and thus reduce emissions a detailed understanding of the flow field is necessary. The method of choice was high-speed two-component particle image velocimetry (PIV) imaging a large field of view (43 x 44 mm₂). To capture the temporal evolution of the main flow features the repetition rate was set to 6 kHz which resolves one image per 1° crank angle (CA) at 1000 rpm. The crank angle range recorded was the latter half of the compression stroke at various engine speeds as well as various charge motions (neutral, tumble and swirl). Moreover, consecutive cycles were recorded allowing a detailed investigation of cycle-to-cycle variations. This was done by comparing the kinetic energy distribution for individual and ensemble averaged cycles. Here, the tumble charge motion showed a much greater intensity in kinetic energy than the neutral or swirl charge motion. The interaction of the tumble charge motion and the spray injection were investigated in detail. Properties of the spray injection such as penetration depth and spatial drift caused by in-cylinder flows were analyzed. A correlation between the flow field structures and the subsequent spray momentum of different injector types was deduced.
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Müller, S., Arndt, S., and Dreizler, A., "Analysis of the In-Cylinder Flow Field / Spray Injection Interaction within a DISI IC Engine Using High-Speed PIV," SAE Technical Paper 2011-01-1288, 2011, https://doi.org/10.4271/2011-01-1288.Also In
References
- Hentschel, W. “Optical Diagnostics for Combustion Process Development of Direct-Injection Gasoline Engines,” Proc. Combustion Institute 28 1119 1135 2000
- Kuwahara, K. Ando, H. “Diagnostics of In-Cylinder Flow, Mixing and Combustion in Gasoline Engines,” Meas. Sci. Tech. 11 R95 R111 2000
- Arcoumanis, C. Whitelaw, J.H. “Fluid Mechanics of Internal Combustion Engines - A Review,” Proc. Instn. Mech. Engr. 201 57 74 1987
- Gleißner, M. Arndt, S. Grzeszik, R. Dreizler, A. Böhm, B. Müller, S.H.R. “Analyse der Brennraumströmung einer Direkteinspritzenden Ottomotors mittels Hochgeschwindigkeits-Particle Image Velocitmetry: Auswirkung auf Gemischbildung und Verbrennung,” 9th Engine Combustion Processes Conf 2009 Munich, Germany
- Fajardo, C. Sick, V. “Flow field Assessment in a Fired Spray-Guided Spark-Ignition Direct-Injection Engine Based on UV Particle Image Velocimetry with Sub Crank Angle Resolution,” Proc. Combustion Institute 31 3023 3031 2007
- Fajardo, C. Sick, V. “Development of a High-Speed UV Particle Image Velocimetry Technique and Application for Measurements in Internal Combustion Engines,” Exp. Fluids 46 43 53 2009
- Stolz, W. Köhler, J. Lawrenz, W. Meier, F. et al. “Cycle Resolved Flow Field Measurements Using a PIV Movie Technique in a SI Engine,” SAE Technical Paper 922354 1992 10.4271/922354
- Wieske, P. Wissel, S. Grünefeld, G. Graf, M. et al. “Experimental Investigation of the Origin of Cyclic Fluctuations in a DISI Engine by Means of Advanced Laser Induced Exciplex Fluorescence Measurements,” SAE Technical Paper 2006-01-3378 2006 10.4271/2006-01-3378
- Müller, S.H.R. Böhm, B. Gleißner, M. Grzeszik, R. Arndt, S. Dreizler, A. “Flow Field Measurements in an Optically Accessible, Direct-Injection Spray-Guided Internal Combustion Engine Using High-Speed PIV,” Exp. Fluids 48 281 290 2010
- Rottenkolber, G. Gindele, J. Raposo, J. Dullenkopf, K. Hentschel, W. Wittig, S. Spicher, U. Merzkirch, W. “Spray Analysis of a Gasoline Direct Injector by Means of Two-Phase PIV,” Exp. Fluids 32 710 721 2002
- Towers, D.P. Towers, C.E. “Cyclic Variability Measurements of In-Cylinder Engine Flows Using High-Speed Particle Image Velocimetry,” Meas. Sci. Tech. 15 1917 1925 2004
- Reeves, M. Towers, D.P. Tavender, B. Buckberry, C. H. “A High-Speed All-Digital Technique for Cycle-Resolved 2-D Flow Measurement and Flow Visualizations within SI Engine Cylinders,” Optics and Lasers in Eng. 31 247 261 1999
- Müller, S.H.R. Böhm, B. Gleißner, M. Arndt, S. Dreizler, A. “Analysis of the Temporal Flame Kernel Development in an Optically Accessible IC Engine Using High-Speed OH-PLIF,” Appl. Phys. B 100 447 452 2010
- Sick, V. Drake, M.C. Fansler, T.D. “High-Speed Imaging for Direct-Injection Gasoline Engine Research and Development,” Exp. Fluids 2010 10.1007/s00348-010-0891-3
- Fansler, T.D. Drake, M.C. Böhm, B. “High-Speed Mie-Scattering Diagnostics for Spray-Guided Gasoline Engine Development,” 8th Int. Symposium on Combustion Diagnostics Baden-Baden, Germany 2008
- Drake, M.C. Fansler, T.D. Lippert, A.M. “Stratified-Charge Combustion: Modeling and Imaging of Spray-Guided Direct-Injection Spark-Ignition Engine,” Proc. Combustion Institute 30 2683 2691 2005
- Böhm, B. Geyer, D. Dreizler, A. Venkatesan, K.K. Laurendeau, N.M. Renfro, M.W. “Simultaneous PIV/PTV/ OH- PLIF Imaging: Conditional Flow Field Statistics in Partially Premixed Turbulent Opposed Jet Flames,” Proc. Combustion Institute 31 709 717 2007
- Dyckmans, J. 2010