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Investigations of Spray-Induced Vortex Structures during Multiple Injections of a DISI Engine in Stratified Operation Using High-Speed-PIV
Technical Paper
2013-01-0563
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Modern gasoline direct injection engines with spray-guided combustion processes require a stable and reliable fuel mixture formation as well as an optimal stratification at time of ignition. Due to the limited time for this process the temporal and spatial analysis of the in-cylinder flow field and its influence is of significant interest. The application of a piezo injector with outward opening nozzle and its capability to realize multiple injections within the compression stroke provides additional degrees of freedom for the stratified engine operation. To improve the performance of this combination a detailed knowledge of the in-cylinder flow field and its interaction with the spray propagation during and after multiple injections is essential. The flow field measurements were applied in an optical borescope single-cylinder research engine using a high-speed particle image velocimetry (HSPIV) setup. Focusing on real engine operation all investigations were performed in fired condition. The endoscopic PIV setup was used to capture the instantaneous flow field at engines speeds of up to 3000 rpm. This goes along with a resolution of 0.5° crank angle degrees using a camera framing rate (cfr) of 36 kHz. For every operating point the interaction between the spray propagation and the tumble motion was visualized for 100 individual consecutive combustion cycles. The results demonstrate the capability to use a high-speed PIV setup to identify the interaction for mean-averaged data-sets as well as for individual combustion cycles. The vortex formation and movement is analyzed with the calculated velocity vectors, the averaged kinetic energy, and the turbulent kinetic energy.
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Disch, C., Kubach, H., Spicher, U., Pfeil, J. et al., "Investigations of Spray-Induced Vortex Structures during Multiple Injections of a DISI Engine in Stratified Operation Using High-Speed-PIV," SAE Technical Paper 2013-01-0563, 2013, https://doi.org/10.4271/2013-01-0563.Also In
References
- Waltner , A. , Lückert , P. , Schaupp , U. , Rau , E. , Kemmler , R. , Weller , R. Future Technology of the Spark-ignition Engine: Spray-guided Direct Injection with Piezo Injector 27. Internationales Wiener Motorensymposium 2006
- Enderle , C. , Kemmler , R. , Waltner , A. , Altenschmidt , F. Challenges for the development of powertrains with SI-engines and lean combustion systems 13. Tagung “Der Arbeitsprozess des Verbrennungsmotors” 2011
- Kohse-Höinghaus , K. , Jeffries , J. B. Applied combustion diagnostics Taylor and Francis 2002
- Raffel , M. , Willert , C. , Kompenhans , J. Particle Image Velocimetry Springer 1998
- Keane , R. D and Adrian , R. J. Theory of cross-correlation analysis of PIV images 1992 Applied Scientific Research 49 191 215
- Adrian , R. J. Dynamic ranges of velocity and spatial resolution of particle image velocimetry 1997 Measurement Science and Technology 8 1393 1398
- Westerweel , J. Fundamentals of digital particle image velocimetry 1997 Measurement Science and Technology 8 1379 1392
- Westerweel , J. Theoretical analysis of the measurement precision in particle image velocimetry 2000 Experiments in Fluids S3 S12
- Sauter , W. , Pfeil , J. , Velji , A. , Spicher , U. et al. Application of Particle Image Velocimetry for Investigation of Spray Characteristics of an Outward Opening Nozzle for Gasoline Direct Injection SAE Technical Paper 2006-01-3377 2006 10.4271/2006-01-3377
- Towers , D. P. and Towers , C. E. Cyclic variability measurements of in-cylinder engine flows using high-speed particle image velocimetry Measurement Science and Technology 2004 15 1917 1925 10.1088/0957-0233/15/9/032
- Altenschmidt , F. , Bertsch , D. , Bezner , M. , Laudenbach , N. , Zahn , M. , Schaupp , U. , Kaden , A. , Reinhardt , N. The analysis of the injection process on SI-engines with direct injection in stratified mode 2006 7 th International Symposium on Combustion Diagnostics Baden-Baden, Germany
- Peterson , B. , Reuss , D. L. and Sick , V. High-Speed imaging analysis of misfires in a spray-guided direct injection engine Proceeding of the Combustion Institute 2011 33 3089 3096
- Stansfield , P. , Wigley , G. , Justham , T. , Catto , J. and Pitcher , G. PIV analysis of in-cylinder flow structures over a range of realistic engine speeds Journal Experiments in Fluids 2007 43 135 146 10.1007/s00348-007-0335-x
- Müller , S. H. R. , Böhm , B. , Gleißner , M. , Grzeszik , R. , Arndt , S. and Dreizler , A. Flow field measurements in an optically accessible, direct-injection spray-guided internal combustion engine using high-speed PIV Journal Experiments in Fluids 2010 48 281 290 10.1007/s00348-009-0742-2
- Fajardo , C. M. and Sick , V. Development of a high-speed UV particle image velocimetry technique and application for measurements in internal combustion engines Journal Experiment in Fluids 2009 46 43 53 10.1007/s00348-008-0535-z
- Fajardo , C. M. , Smith , J. D. and Sick , V. PIV, high-speed PLIF and chemiluminescence imaging for near-spark-plug investigations in IC engines Journal of Physics 2006 Conference Series 45 19 26 10.1088/1742-6596/45/1/003
- Jainski , C. , Dreizler , A. , Sick , V. , Lu , L. High-Speed Micro Particle Image Velocimetry Studies of Boundary Layer Flows in a Direct-Injection Engine 2012 10 th International Symposium on Combustion Diagnostics Baden-Baden, Germany
- Rottenkolber , G. , Gindele , J. , Raposo , J. , Dullenkopf , K. , Hentschel , W. , Wittig , S. , Spicher , U. and Merzirch , W. Spray analysis of a gasoline direct injector by means of two-phase PIV Journal Experiments in Fluids 2002 32 710 721 10.1007/s00348-002-0441-8
- Brandt , A. , Merzkirch , W. Particle Image Velocimetry Applied to a Spray Jet Particle & Particle Systems Characterization 1994 11 2 156 158
- Driscoll , K. D. , Sick , V. , Gray , C. Simultaneous air/fuel-phase PIV measurements in a dense fuel spray Journal Experiments in Fluids 2003 35 112 115 10.1007/s00348-003-0647-4
- Kosiwczuk , W. , Cessou , A. , Trinité , M. , Lecordier , B. Simultaneous velocity field measurements in two-phase flows for turbulent mixing of sprays by means of two-phase PIV Journal Experiments in Fluids 2005 39 895 908 10.1007/s00348-005-0027-3
- Towers , D. P. and Towers , C. E. , Buckberry , C.H. , Reeves , M. A colour PIV system employing fluorescent particles for two-phase flow measurements Measurement Science and Technology 1999 10 824 830
- Busch , S. , Disch , C. , Kubach , H. , and Spicher , U. Optical Investigations of the Vaporization Behaviors of Isooctane and an Optical, Non-fluorescing Multicomponent Fuel in a Spark Ignition Direct Injection Engine SAE Technical Paper 2010-01-2271 2010 10.4271/2010-01-2271
- Dierksheide , U. , Meyer , P. , Hovestadt , T. , Hentschel , W. Endoscopic 2D particle image velocimetry (PIV) flow field measurements in IC engines Journal Experiments in Fluids 2002 33 794 800 10.1007/s00348-002-0499-3
- Melling , A. Tracer particles and seeding for particle image velocimetry Measurement Science and Technology 1997 8 1406 1416
- Sankar , S. V. , Kanemoto , D. Y. , Bachalo , W. D. An evaluation on the use of large, hollow micro-balloons as LDV seed particles 6 th International Symposium on Applications of Laser Techniques to Fluid Mechanics 1992
- Bertsch , M. , Schreer , K. , Disch , C. , Beck , K. et al. Investigation of the Flow Velocity in the Spark Plug Gap of a Two-Stroke Gasoline Engine using Laser-Doppler-Anemometry SAE Int. J. Engines 5 1 34 41 2012 10.4271/2011-32-0529