This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
High-Speed Particle Image Velocimetry Study of In-Cylinder Flows with Improved Dynamic Range
Technical Paper
2013-01-0542
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Engine in-cylinder velocity measurements are necessary for the study of cycle-to-cycle variations and the effect of turbulence and air-fuel mixing on combustion. High-speed particle image velocimetry (PIV) can provide measurements through the entire cycle, for multiple contiguous cycles. However, the PIV dynamic range, using a single spatial resolution and image separation, is insufficient to resolve the wide range of in-cylinder velocity and spatial scales encountered throughout the engine cycle. This paper discusses in-cylinder PIV data acquired with cycle resolution from the central tumble plane of a motored spark ignition optical engine using PIV image frame time separations (dts) that were dynamically varied as a function of crank angle. Also, two cameras with different magnifications were used to simultaneously acquire PIV images at high and low spatial resolution.
An assessment of the measurement errors revealed that the high spatial resolution data captured the lower velocity magnitudes with greater resolution while the low spatial resolution data better captured velocity vectors of higher magnitude, especially during early intake and exhaust valve opening. The low spatial resolution data was also compared with data acquired at a constant time separation optimized for the intake jet flow. Results showed that the noise in the Reynolds decomposed turbulent kinetic energy was about 50% for the constant dt data, while remaining below 5% for the variable dt data, for most of the compression stroke.
Recommended Content
Authors
Topic
Citation
Abraham, P., Reuss, D., and Sick, V., "High-Speed Particle Image Velocimetry Study of In-Cylinder Flows with Improved Dynamic Range," SAE Technical Paper 2013-01-0542, 2013, https://doi.org/10.4271/2013-01-0542.Also In
References
- Reuss , D. , Adrian , R. , Landreth , C. , French , D. et al. Instantaneous Planar Measurements of Velocity and Large-Scale Vorticity and Strain Rate in an Engine Using Particle-Image Velocimetry SAE Technical Paper 890616 1989 10.4271/890616
- 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
- Reeves , M. , Towers , D. P. , Tavender , B. and Buckberry , C. H. A high-speed all-digital technique for cycle-resolved 2-D flow measurement and how visualisation within SI engine cylinders Optics and Lasers in Engineering 31 4 247 261 1999 10.1016/s0143-8166(99)00026-3
- Fajardo , C. M. and 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 Proceedings of the Combustion Institute 31 2 3023 3031 2007 10.1016/j.proci.2006.08.016
- Sick , V. , Reuss , D. , Rutland , C. , Haworth , D. , Oefelein , J. , Janicka , J. , Kuo , T. W. and Freitag , X.Y. A common engine platform for engine LES development and validation Angelberger , C. LES4ICE, IFP Energies Nouvelles Rueil-Malmaison France 2010
- Pera , C. and Angelberger , C. Large Eddy Simulation of a Motored Single-Cylinder Engine Using System Simulation to Define Boundary Conditions: Methodology and Validation SAE Int. J. Engines 4 1 948 963 2011 10.4271/2011-01-0834
- Voisine , M. , Thomas , L. , Boree , J. , and Rey , P. Spatio-temporal structure and cycle to cycle variations of an in-cylinder tumbling flow Experiments in Fluids 50 1393 1407 2011 10.1007/s00348-010-0997-7
- Baby , X. , Dupont , A. , Ahmed , A. , Deslandes , W. et al. A New Methodology to Analyze Cycle-to-Cycle Aerodynamic Variations SAE Technical Paper 2002-01-2837 2002 10.4271/2002-01-2837
- Alizon , F. , Guibert , P. , Dumont , P. , and Dupont , A. Convective Heat Transfers in the Combustion Chamber of an Internal Combustion Engine Influence of In-Cylinder Aerodynamics SAE Technical Paper 2005-01-2028 2005 10.4271/2005-01-2028
- Reuss , D. , Kuo , T. , Khalighi , B. , Haworth , D. et al. Particle Image Velocimetry Measurements in a High-Swirl Engine Used for Evaluation of Computational Fluid Dynamics Calculations SAE Technical Paper 952381 1995 10.4271/952381
- 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 Experiments in Fluids 43 135 146 2007 10.1007/s00348-007-0335-x
- Peterson , B. , Reuss , D. L. and Sick , V. High-speed imaging analysis of misfires in a spray-guided direct injection engine Proceedings of the Combustion Institute 33 2 3089 3096 2011 10.1016/j.proci.2010.07.079
- Alharbi , A. Y. and Sick , V. Investigation of Boundary Layers in Internal Combustion Engines using a Hybrid Algorithm of High Speed Micro-PIV and PTV Experiments in Fluids 49 949 959 2010 10.1007/s00348-010-0870-8
- Westerweel , J. Fundamentals of digital particle image velocimetry Measurement Science and Technology 8 1379 1392 1997
- Westerweel , J. Theoretical analysis of the measurement precision in particle image velocimetry Experiments in Fluids Supplement S3 S12 2000
- Willert , C. E. The fully digital evaluation of photographic recording Applied Scientific Research 56 79 102 1996
- Willert , C. E. and Gharib , M. Digital particle image velocimetry Experiments in Fluids 10 181 93 1991
- Keane , R. D. , and Adrian , R. J. Optimization of particle image velocimeters. Part I: Double pulsed systems Measurement Science and Technology 1 1202 1215 1990
- Westerweel , J. On velocity gradients in PIV interrogation Experiments in Fluids 44 831 842 2008 10.1007/s00348-007-0439-3
- Megerle M. , Sick V. , and Reuss D. L. Measurement of digital particle image velocimetry precision using electro-optically created particle-image displacements Measurement Science and Technology 13 997 1005 2002
- Fincham , A. , and Delerce , G. Advanced optimization of correlation imaging velocimetry algorithms Experiments in Fluids Supplement S13 S22 2000
- Hain , R. , and Kähler , C. J. Fundamentals of multiframe particle image velocimetry (PIV) Experiments in Fluids 42 575 587 2007 10.1007/s00348-007-0266-6
- Persoons , T. , and O'Donovan , T. S. High Dynamic Velocity Range Particle Image Velocimetry Using Multiple Pulse Separation Imaging Sensors 11 1 18 2011 10.3390/s110100001
- Reuss , D. Cyclic Variability of Large-Scale Turbulent Structures in Directed and Undirected IC Engine Flows SAE Technical Paper 2000-01-0246 2000 10.4271/2000-01-0246
- Reuss , D. L. , and Rosalik , M. E. PIV Measurements During Combustion in a Reciprocating Internal Combustion Engine Proceedings of the 9 th International Symposium on Applications of Laser Technologies in Fluid Mechanics Lisbon, Portugal July 13 16 1998
- LaVision GmbH 2011 Product-Manual: Flow Master, Item-Number(s Göttingen, Germany
- Prasad , A. K. Stereoscopic particle image velocimetry Experiments in Fluids 29 103 116 2000