This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
In-Cylinder Flow Measurements in a Transparent Spark Ignition Engine
Technical Paper
2019-24-0099
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Flame development, combustion efficiency and emissions of a gasoline direct injection engine are strongly related with mixture preparation. Consequently, it is important to investigate the flow field and turbulence quantities at the parts of the thermodynamic cycle in which mixture preparation occurs. Flow field measurements were obtained by using 2D digital Particle Image Velocimetry technique in a 475cc optical single - cylinder Gasoline Direct Injection (GDI) spark ignition engine. The results include phase averaged velocity fields at 1000 and 1500 RPM with 100% and 25% throttle position. These sets of measurements were conducted for cold flow (motoring) conditions at three different planes including the tumble plane and the swirl plane. The flow was recorded at various crank angles between 340° and 20° before the combustion top dead center (BTDC) with an increment of 40°. The spatial averaged TKE (Turbulent Kinetic Energy) was calculated along with the TR (Tumble Ratio). It was observed that a tumble like motion with Counter Clock Wise rotation (CCW) was present near the maximum lift timing of the intake valves. The peak TKE at the intake stroke was present at -260° BTDC, with WOT (wide open throttle) and it was quite similar at 1000 and 1500 RPM. As expected, at 25% throttle position the TKE was less compared to the WOT case. The absolute value of TR, was much higher for the tumble plane comparing to the other measurement planes, both at 1000 and 1500RPM.
Recommended Content
Authors
Citation
Tsiogkas, V., Chraniotis, A., Kolokotronis, D., and Tourlidakis, A., "In-Cylinder Flow Measurements in a Transparent Spark Ignition Engine," SAE Technical Paper 2019-24-0099, 2019, https://doi.org/10.4271/2019-24-0099.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 |
Also In
References
- Aleiferis , P. G. , Behringer , M. K. , and Malcolm , J. S. Integral Length Scales and Time Scales of Turbulence in an Optical Spark-Ignition Engine Flow, Turbulence and Combustion 98 2 523 577 2017 10.1007/s10494-016-9775-9
- Murali Krishna , B. and Mallikarjuna , J. M. Effect of Manifold Inclination on an Unfired Engine Equipped with Flat Piston Using Non-Intrusive Technique - Experimental Flow Structure Analysis Journal of Basic and Applied Engineering Research 2 21 1804 1809 2015a
- Murali Krishna , B. and Mallikarjuna , J. M. PIV Experiments and In-Cylinder Flow Structure Analysis of a Motored Engine Equipped with Inclined Crown Pistons International Journal of Engineering Technology, Management and Applied Sciences Www.Ijetmas.Com 3 September 130 139 2015b
- Benajes , J. , Pastor , J. V. , García , A. , and Monsalve-Serrano , J. Redesign and Characterization of a Single-Cylinder Optical Research Engine to Allow Full Optical Access and Fast Cleaning during Combustion Studies Experimental Techniques 42 1 55 68 2018 10.1007/s40799-017-0219-9
- Dannemann , J. , Pielhop , K. , and Klaas , M. Cycle-Resolved Multi-Planar Particle-Image Velocimetry Measurements of the In-Cylinder Flow of a Four-Valve Combustion Engine 8th International Symposium on Particle Image Velocimetry Melbourne, Victoria, Australia 2 5 2009
- Dreizler , E. , Baum , B. , Peterson , B. , and Böhm , E. On The Validation of LES Applied to Internal Combustion Engine Flows : Part 1 : Comprehensive Experimental Database 269 297 2014 10.1007/s10494-013-9468-6
- El-adawy , M. , Heikal , M. R. , and Aziz , A. R. A. Experimental Investigation of the In-Cylinder Tumble Motion inside GDI Cylinder at Different Planes under Steady-State Condition Using Stereoscopic-PIV Journal of Applied Fluid Mechanics 12 1 41 49 2019 https://doi.org/10.18869/acadpub.jafm.75.253.28885
- Huang , R. F. , Yang , H. S. , and Yeh , C. N. In-Cylinder Flows of a Motored Four-Stroke Engine with Flat-Crown and Slightly Concave-Crown Pistons Experimental Thermal and Fluid Science 32 5 1156 1167 2008 10.1016/j.expthermflusci.2008.01.008
- Justham , T. , Jarvis , S. , Clarke , A. , Garner , C. P. et al. Simultaneous Study of Intake and In-Cylinder IC Engine Flow Fields to Provide an Insight into Intake Induced Cyclic Variations Journal of Physics: Conference Series 45 146 153 2006 10.1088/1742-6596/45/1/019
- Karhoff , D. , Bücker , I. , Klaas , M. , and Schröder , W. Time-Resolved Stereoscopic PIV Measurements of Cyclic Variations in an Internal Combustion Engine 10th International Symposium on Particle Image Velocimetry -PIV13 2013
- Keane , R. D. and Adrian , R. J. Optimization of Particle Image Velocimeters. I. Double Pulsed Systems Meas. Sci. Technol. Meas. Sci. Technol 1 1 1202 1215 1990 http://iopscience.iop.org/0957-0233/1/11/013
- Khalighi , B. Study of the Intake Tumble Motion by Flow Visualization and Particle Tracking Velocimetry Experiments in Fluids 10 230 236 1991 https://link.springer.com/content/pdf/10.1007%2FBF00190393.pdf
- Raffel , M. , Willert , C. E. , Scarano , F. , Kähler , C. J. et al. Particle Image Velocimetry, A Practical Guide Third Springer 2018
- Reeves , M. , Towers , D. P. , Tavender , B. , and Buckberry , C. H. High-Speed All-Digital Technique for Cycle-Resolved 2-D Flow Measurement and Flow Visualization within SI Engine Cylinders Optics and Lasers in Engineering 31 4 247 261 1999 10.1016/S0143-8166(99)00026-3
- Stansfield , P. , Wigley , G. , Justham , T. , Catto , J. et al. PIV Analysis of In-Cylinder Flow Structures Over a Range of Realistic Engine Speeds Experiments in Fluids 43 1 135 146 2007 10.1007/s00348-007-0335-x
- Vernet , J. Detailed Study of Steady Incylinder Flow and Turbulence Using Stereo-PIV http://kth.diva-portal.org/smash/record.jsf?pid=diva2:512553
- Voisine , M. , Thomas , L. , Borée , J. , and Rey , P. Structure and In-Cycle Evolution of an In-Cylinder Tumbling Flow 14th Int Symp on Applications of Laser Techniques to Fluid Mechanics Lisbon Portugal Elsinga 2006 05 08 2010
- Williams , B. , Edwards , M. , Stone , R. , Williams , J. , and Ewart , P. High Precision In-Cylinder Gas Thermometry Using Laser Induced Gratings: Quantitative Measurement of Evaporative Cooling with Gasoline/Alcohol Blends in a GDI Optical Engine Combustion and Flame 161 1 270 279 2014 10.1016/j.combustflame.2013.07.018
- Wu , X. , Daniel , R. , Tian , G. , Xu , H. et al. Dual-Injection: The Flexible, Bi-Fuel Concept for Spark-Ignition Engines Fuelled with Various Gasoline and Biofuel Blends Applied Energy 88 7 2305 2314 2011 10.1016/j.apenergy.2011.01.025