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The 3-D In-Cylinder Charge Motion of a Four-Valve SI Engine under Stroke, Speed, and Load Variation
Technical Paper
2000-01-2798
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Improvements in engine combustion depend on a thorough understanding of the actual in-cylinder flows. This study is thought to be the first fully three-dimensional (3-D) LDV measurement effort that evaluated the vast majority of the displacement volume under a variation of speed, load, and stroke during the intake and compression strokes. The intake port geometry was not changed during the course of the study.
Most of the engine setups studied showed similar in-cylinder velocity patterns. The well developed tumble motion exhibited only marginal changes under the different speed, load, and throttle conditions with one exception: at idle condition, the tumble motion broke down into two equally strong downward flows along the cylinder liner. For all the other setups a robust tumble motion, which was distributed throughout the displacement volume prevailed until the end of measurement, sustaining significant amounts of ttumble motion until late in compression. The investigated in-cylinder flows appear to be more affected by the throttle condition than by the speed or stroke variations.
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Authors
- Hans G. Hascher - Engine Research Laboratory Michigan State University, East Lansing, MI
- Mark Novak - Engine Research Laboratory Michigan State University, East Lansing, MI
- Tom Stuecken - Engine Research Laboratory Michigan State University, East Lansing, MI
- Harold J. Schock - Engine Research Laboratory Michigan State University, East Lansing, MI
- James Novak - Powertrain Operations Ford Motor Company, Dearborn, MI
Citation
Hascher, H., Novak, M., Stuecken, T., Schock, H. et al., "The 3-D In-Cylinder Charge Motion of a Four-Valve SI Engine under Stroke, Speed, and Load Variation," SAE Technical Paper 2000-01-2798, 2000, https://doi.org/10.4271/2000-01-2798.Also In
References
- Lancaster, D. R., Krieger, R. B., Sorenson, S. C., and Hull, W. L., “Effects of Turbulence on Spark-Ignition Engine Combustion,” SAE Paper 760160, 1976
- Davis, G. C., Tabaczynski, R. J., Belaire, R. C., “The Effect of Intake Valve Lift on Turbulence Intensity and Burn Rate in SI Engines,” SAE Paper 840030, 1984
- Ekchian, A. and Hoult, D. P., “Flow Visualization Study of the Intake Process of an Internal Combustion Engine,” SAE Paper 790095, 1979
- Schock, H. J., Hamady, F., DeFillipis, M., Stuecken, T., Gendrich, C., LaPointe, L. A., “High Frame Rate Flow Visualization and LDV Measurements in a Steady Flow Cylinder Head Assembly,” SAE Paper 910473, 1991
- Lee, K., Yoo, S.-C., Stuecken, T., McCarrick, D., Schock, H. J., Hamady, F., LaPointe, L. A., Keller, P., and Hartman P., “An Experimental Study of In-Cylinder Air Flow in a 3.5L Four-Valve SI Engine by High Speed Flow Visualization and Two-Component LDV Measurement,” SAE Paper 930478, 1993
- Khalighi, B., Haworth, D. C., and Huebler, M. S., “Multidimensional Port- and In-Cylinder Flow Calculations and Flow Visualization Study in an Internal Combustion Engine with Different Intake Runner Configurations,” SAE Paper 941871, 1994
- Glaspie, C. R., Jaye, J. R., Lawrence, T. G., Lounsberry, T. H., Mann, L. B., Opra, J. J., Roth, D. B., and Zhao, F.-Q., “Application of Design and Development Techniques for Direct Injection Spark Engines,” SAE Paper 1999-01-0506
- Rask, R. R., “Comparison of Window, Smoothed-Ensemble, and Cycle-by-Cycle Data Reduction Technique for Laser-Doppler Anemometer Measurements of In-Cylinder Velocity,” Fluid Mechanics in Combustion Systems, Page 11, ASME, 1981
- Liou, T.-M. and Santavicca, D. A., “Cycle Resolved LDV Measurements in a Motored IC Engine,” Transactions of ASME, page 107, June 1985
- Kent, J. C., Mikulec A., Stein, R. A. et al., “Observation on the Effects of Intake Generated Swirl and Tumble on Combustion Duration,” SAE Paper 892096, 1989
- Reuss, D. L., Bardsley, M., Felton, P. G., Landreth, C. C., and Adrian, R. J., “Velocity, Vorticity, and Strain-Rate Ahead of a Flame Measured in an Engine Using Particle Image Velocimetry,” SAE 900053, 1990
- Hilbert, H. S., “Measurements of Flows During Scavenging in a Two-Stroke Engine,” Masters Thesis, Michigan State University, 1991
- Omori, S., Iwachido, K., Motomochi, M., and Hirako, O., “Effect of Intake Flow Pattern on the In-Cylinder Tumbling Air Flow in Multi-Valve SI Engines,” SAE Paper 910477, 1991
- Trigui, N., Kent, J. C., Guezennec, Y., and Choi, W.-C., “Characterization of Intake Generated Fluid Flow Fields in IC Engines Using 3-D Particle Tracking Velocimetry (3-D PTV),” SAE Paper 940279, 1994
- Neusser, H.-J., Spiegel, L., and Ganser, J., “Particle Tracking Velocimetry - A Powerful Tool to Shape the In-Cylinder Flow of Modern Multi-Valve Engine Concepts,” SAE Paper 950102, 1995
- Yoo, S.-C., Lee, K., Novak, M., Schock, H. J., and Keller, P., “3-D LDV Measurements of In-Cylinder Air Flow in a 3.5L Four-Valve SI Engine,” SAE Paper 950648, 1995
- Hascher, H. G., Novak, M., Lee, K., Schock, H. J., Rezaei, H., Koochesfahani, M., “An Evaluation of IC-Engine Flows with the Use of Modern In-Cylinder Measuring Techniques,” AIAA Paper-98-3455, 1998
- Stier, B. and Koochesfahani, M. M., “Molecular Tagging Velocimetry (MTV) measurements in gas phase flows,” Experiments in Fluids, 1999, 26, pages 297-304
- Liu, R.-L., Liu, W., Wu, L.-Q., and Zhao, C.-L., “LDV Measurements of Velocities and Turbulence Intensities in a Production SI Engine Under Motored and Firing Conditions,” SAE Paper 1999-01-0955, 1999
- Jaffri, K., Hascher, H. G., Novak, M., Lee, K., Schock, H. J., Bonne, M., Keller, P., “Tumble and Swirl Quantification within a Motored Four-Valve SI Engine Cylinder Based on 3-D LDV Measurements,” SAE Paper 970792, 1997
- Hascher, H. G., Jaffri, K., Novak, M., Lee, K., Schock, H. J., Bonne, M., and Keller, P., “An Evaluation of Turbulent Kinetic Energy for the In-Cylinder Flow of a Four-Valve 3.5L SI Engine Using 3-D LDV Measurements,” SAE Paper 970793, 1997
- Hascher, H. G., Schock, H. J., Avanessian, O., and Novak, J., “A Comparison of Modeled and Measured 3-D In-Cylinder Charge Motion Throughout the Displacement of a Four-Valve SI Engine,” SAE Paper 2000-01-2799, 2000
- Tennekes, H. and Lumley, J. L., “A First Course in Turbulence,” MIT Press, 1972
- Dimipoulos, P. and Boulouchos, K., “Reynolds Stress Components in the Flow Field of a Motored Reciprocating Engine,” SAE Paper 950725, 1995
- Hall, M. J. and Bracco, F. V., “A Study of Velocities and Turbulence Intensities Measured in Firing and Motored Engines,” SAE Paper 870453, 1987
- Hadded, O. and Denbratt, I., “Turbulence Characteristic of Tumbling Air Motion in SI Engine and their Correlation with Combustion Parameters,” SAE Paper 910478, 1991
- Spessa, E., “A Contribution to the Analysis of Turbulence Anisotropy and Nonhomogenity in an Open-Chamber Diesel Engine”, ASME Journal of Engineering for Gas Turbines and Power, vol. 121, pages 226-234, 1999
- Reynolds, W. C., “Fundamentals of Turbulence for Turbulence Modeling and Simulation,” 1987, version 3.1, Lecture Notes for the von-Karman Institute
- Le Coz, J. F., Henriot, S., and Pinchon, P., “An Experimental and Computational Analysis of the Flow Field in a Four-Valve Spark Ignition Engine - Focus on Cycle Resolved Turbulence,” SAE Paper 90056, 1990
- Hadded, O. and Denbratt, I., “Turbulence Characteristic of Tumbling Air Motion in SI Engine and their Correlation with Combustion Parameters,” SAE Paper 910478, 1991
- Heywood, J. B.,, “Internal Combustion Engine Fundamentals,” McGraw-Hill, 1988
- Stone, R., “Introduction to Internal Combustion Engines,” SAE, 1993
- Tennekes, H. and Lumley, J. L., “A First Course in Turbulence,” MIT Press, 1972
- Breidenthal, R. E., Buonadonna, V. R., and Weisbach, M. F., “Molecular Mixing via Jets in Confined Volumes,” Journal of Fluid Mechanics, 1990, volume 219, pages 531-544
- Hascher, H. G., “The Influence of Speed, Stroke, and Load Variations on the Major In- Cylinder Flow Patterns of a Four-Valve SI-Engine,” Dissertation, RWTH Aachen, 1999