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Manipulating Tumble and Swirl Flows in Cylinder of a Motored Four-Valve Engine by Inlet Deflection Valve

Published online by Cambridge University Press:  05 May 2011

R. F. Huang ,
J. H. Yu  and
C.-N. Yeh
R. F. Huang*
Affiliation:
Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan 10607, R.O.C.
J. H. Yu*
Affiliation:
Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan 10607, R.O.C.
C.-N. Yeh*
Affiliation:
R & D Center, Sangyang Industry Co., Hsin Fong Shiang, Hsinchu County, Taiwan 30444, R.O.C.
*
* Professor
** Graduate student
*** Senior Research Specialist
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Abstract

Effects of the inlet-stream deflection on the temporal and spatial evolution processes of the in-cylinder flow structures (tumble/swirl) and turbulence intensities in the symmetry and diametral planes of a motored four-valve, four-stroke engine are diagnosed by using a particle image velocimeter. The inception, establishment, and evolution of the tumbling/swirling vortical flow structures during the intake and compression strokes in the engine cylinder with/without inlet-stream deflection are depicted and compared. Quantitative strengths of the rotating vortical flow motions are presented by dimensionless parameters (tumble and swirl ratios) which can represent the mean angular velocity of the vortices in the target plane. The turbulence intensity is calculated by using the measured time-varying velocity data. The results show that by deflecting the inlet air-stream the tumble and swirl ratios of the in-cylinder flow are appreciably increased by about 0.1 and the turbulence intensity is increased by about 5 ∼ 10%.

Keywords

In-cylinder flowTumble/swirl motionPIV measurement
Type
Articles
Information
Journal of Mechanics , Volume 24 , Issue 4 , December 2008 , pp. 333 - 345
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2008

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References

1.Iwamoto, Y., Noma, K., Nakayama, O., Yamauchi, T. and Ando, H., “Development of Gasoline Direct Injection Engine,” SAE paper 970541, Warrendale, PA (1997).Google Scholar
2.Arcoumanis, C., Bicen, A. F., Vlachos, N. S. and Whitelaw, J. H., “Effects of Flow and Geometry Boundary Conditions on Fluid Motion in a Motored IC Model Engine,” Proceeding of Institute of Mechanical Engineers, 196, pp. 1–10 (1982).CrossRefGoogle Scholar
3.Heywood, J. B., Internal Combustion Engine Fundamentals, McGraw-Hill, New York (1988).Google Scholar
4.Heywood, J. B., “Fluid Motion within the Cylinder of Internal Combustion Engines,” Journal of Fluids Engineering, 109, pp. 3–35 (1987).CrossRefGoogle Scholar
5.Rask, R. B., “Laser Doppler Anemometer Measurements in an Internal Combustion Engine,” SAE paper 790094, Warrendale, PA (1979).Google Scholar
6.Chen, C. K., Wang, L., Yang, J. T. and Chen, L. T., “Experimental and Computational Analysis of Periodic Flow Structure in Oscillatory Gas Flow Meters,” Journal of Mechanics, 22, pp. 137–144 (2006).CrossRefGoogle Scholar
7.Ekchian, A. and Hoult, D. P., “Flow Visualization Study of the Intake Process of an Internal Combustion Engine,” SAE paper 790095, Warrendale, PA (1979).Google Scholar
8.Arcoumanis, C., Godwin, S. N. and Kim, J. W., “Effect of Tumble Strength on Combustion and Exhaust Emissions in a Single-Cylinder, Four-Valve, Spark-Ignition Engine,” SAE Paper 981044, Warrendale, PA (1988).Google Scholar
9.Liou, T.-M. and Santavicca, D. A., “Cycle Resolved LDV Measurements in a Motored IC Engine,” Journal of Fluids Engineering, 107, pp. 232–240 (1985).CrossRefGoogle Scholar
10.Khalighi, B., “Study of the Intake Tumble Motion by Flow Visualization and Particle Tracking Velocimetry,” Experiments in Fluids, 10, pp. 230–236 (1991).CrossRefGoogle Scholar
11.Reeves, M., Towers, D. P., Tavender, B. and Buckberry, C. H., “A High-Speed All-Digital Techniques for Cycle-Resolved 2-D Flow Measurement and Flow Visualization within SI Engine Cylinders,” Optics and Lasers in Engineering, 31, pp. 247–261 (1999).CrossRefGoogle Scholar
12.Calendini, P. O., Duverger, T., Lecerf, A. and Trinite, M., “In-Cylinder Velocity Measurements with Stereoscopic Particle Image Velocimetry in a SI Engine,” SAE Paper 2000-01-1798, Warrendale, PA (2000).Google Scholar
13.Ghandhi, J. B., Herold, R. E., Shakal, J. S. and Strand, T. E., “Time Resolved Particle Velocimetry Measurements in an Internal Combustion Engine,” SAE Paper 2005-01-3868, Warrendale, PA (2005).Google Scholar
14.Huang, R. F., Huang, C. W., Chang, S. B., Yang, H. S., Lin, T. W. and Hsu, W. Y., “Topological Flow Evolutions in Cylinder of a Motored Engine During Intake and Compression Strokes,” Journal of Fluids and Structures, 20, pp. 105–127 (2005).CrossRefGoogle Scholar
15.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, pp. 135–146 (2007).CrossRefGoogle Scholar
16.Huang, R. F. and Tsai, F. C., “Observation of Swirling Flows Behind Circular Discs,” AIAA Journal, 39, pp. 1106–1112(2001).CrossRefGoogle Scholar
17.Haworth, D. C., El Tahry, S. H., Huebler, M. S. and Chang, S., “Multidimensional Port-and-Cylinder Flow Calculation for Two- and Four-Valve-per-Cylinder Engines: Influence of Intake Configuration on Flow Structure,” SAE Paper No. 900257, Warrendale, PA (1990).Google Scholar
18.Keane, R. D. and Adrian, R. J., “Theory of Cross-Correlation Analysis of PIV Images,” Applied Scientific Research, 49, pp. 191–215 (1992).CrossRefGoogle Scholar
19.Flagan, R. C. and Seinfeld, J. H., Fundamentals of Air Pollution Engineering, Prentice Hall, Englewood Cliffs, New Jersey, pp. 295–307 (1988).Google Scholar
20.Abernethy, R. B., Benedict, R. P. and Doedell, R. B., “ASME Measurement Uncertainty,” Journal of Fluids Engineering, 107, pp. 161–164(1985).CrossRefGoogle Scholar
21.Huang, R. F. and Tsai, F. C., “Observation of Swirling Flows Behind Circular Discs,” AIAA Journal, 39, pp. 1106–1112(2001).CrossRefGoogle Scholar
22.Hunt, J. C. R., Abell, C. J., Peterka, J. A. and Woo, H., “Kinematical Studies of the Flows Around Free or Surface-Mounted Obstacles: Applying Topology to Flow Visualization,” Journal of Fluid Mechanics, 86, pp. 299–446 (1978).CrossRefGoogle Scholar
23.Rouland, E., Floch, A., Ahmed, A., Dionnet, D. and Trinite, M., “Characterization of Intake Generated Tumble Flow in 4-valve Engine Using Cross-Correlation Particle Image Velocimetry,” 8th International Symposium on Flow Visualization, pp. 195.1–195.15(1998).Google Scholar
24.Tritton, D. J., Physical Fluid Dynamics, Oxford University Press, Oxford, pp. 123–151 (1988).Google Scholar
25.Tennekes, H. and Lumley, J. L., A First Course in Turbulence, MIT Press, Cambridge, pp. 248–261 (1972).CrossRefGoogle Scholar
26.Kanury, A. M., Introduction to Combustion Phenomena, Gordon and Breach, New York, pp. 301–304 (1975).Google Scholar