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Fluid Motion during Flame Propagation in a Spark Ignition Engine
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English
Abstract
Laser Doppler velocimeter results are presented for the mean velocity and turbulence intensity measured during combustion in a research engine. Simultaneously with each LDV measurement, the cylinder pressure and gas state (unburned or burned) were measured so that conditional sampling techniques could be used in the data-averaging procedure.
Measurements of the mean velocity component in the direction of flame propagation agree well with a computer simulation of the induced velocities generated by the volume expansion of the burned gases. Mean velocities measured parallel to the flame surface are shown to be complex because a small amount of swirl was present. Conditional sampling on the time of flame arrival at the LDV probe volume revealed a thirty percent cyclic-variation bias error in the turbulence component normal to the flame. The turbulence field ahead of the flame appears to be enhanced by compression, with the component normal to the flame increased twice as much as the parallel component.
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Citation
Witze, P., Martin, J., and Borgnakke, C., "Fluid Motion during Flame Propagation in a Spark Ignition Engine," SAE Technical Paper 840377, 1984, https://doi.org/10.4271/840377.Also In
References
- Schloesing Montdesir Millard Le Chatelier Ann. des Mines 8 379 1883 Bone W. A. Townend D. T. Flame and Combustion in Gases, Longmans, Green and Co. London 243 1927
- Clerk “Fifth Report Gaseous Explosions Committee,” British Association Report 1912 Bone W. A. Townend D. T. Flame and Combustion in Gases, Longmans, Green and Co. London 243 1927
- Lee D. W. “A Study of Air Flow in an Engine Cylinder,” NACA Report No. 653 1939
- Semenov E. S. “Device for Measuring the Turbulence in Piston Engines,” Instruments and Experimental Techniques 1 1 1958
- Witze P. O. “A Critical Comparison of Hotwire Anemometry and Laser Doppler Velocimetry for I. C. Engine Applications,” Trans. SAE 89 711 1980
- Hutchinson P. Morse A. P. Whitelaw J. H. “Velocity Measurements in Motored Engines: Experience and Prognosis,” SAE Paper No. 780061 1978
- Rask R. B. “Velocity Measurements Inside the Cylinder of a Motored Internal Combustion Engine,” Thompson H. D. Stevenson W. H. Laser Velocimetry and Particle Sizing Hemisphere Press 251 1979
- Witze P. O. “Application of Laser Velocimetry to a Motored Internal Combustion Engine,” Thompson H. D. Stevenson W. H. Laser Velocimetry and Particle Sizing Hemisphere Press 239 1979
- Rask R. B. “Laser Doppler Anemometer Measurements in an Internal Combustion Engine,” Trans. SAE 88 371 1979
- Wigley G. Patterson A. C. Renshaw J. “Swirl Velocity Measurements in a Firing Production Diesel Engine by Laser Anemometry,” Fluid Mechanics of Combustion Systems Morel T. Lohmann R. P. Rackley J. M. ASME New York 29 1981
- Rask R. B. “Comparison of Window, Smoothed-Ensemble, and Cycle-by-Cycle Data Reduction Techniques for Laser Doppler Anemometer Measurements of In-Cylinder Velocity,” Fluid Mechanics of Combustion Systems Morel T. Lohmann R. P. Rackley J. M. ASME New York 11 1981
- Liou T. M. Santavicca D. A. “Cycle Resolved LDV Measurements in a Motored IC Engine,” Proceedings, 103rd Winter Annual Meeting Phoenix ASME 1982
- Libby P. A. Chigier N. LaRue J. C. “Conditional Sampling in Turbulent Combustion,” Progress in Energy and Combustion Science 8 203 1982
- Cole J. B. Swords M. D. “An Investigation of the Ignition Process in a Lean-Burning Engine using Conditionally Sampled Laser-Doppler Anemometry,” Trans. SAE 89 260 1980
- Swords M. D. Kalghatgi G. T. Watts A. J. “An Experimental Study of Ignition and Flame Development in a Spark Ignition Engine,” SAE Paper No. 821220 1982
- Witze P. O. Martin J. K. Borgnakke C. “Measurements and Predictions of the Precombustion Fluid Motion and Combustion Rates in a Spark Ignition Engine,” SAE Paper No. 831697 1983
- Morse A. P. Whitelaw J. H. Yianneskis M. “Turbulent Flow Measurements by Laser-Doppler Anemometry in Motored Piston Cylinder Assemblies,” J. Fluids Engr. 101 208 1979
- Blizard N. C. Keck J. C. “Experimental and Theoretical Investigation of Turbulent Burning Model for Internal Combustion Engines,” Trans. SAE 83 846 1974
- Tabaczynski R. J. Ferguson C. R. Radhakrishnan K. “A Turbulent Entrainment Model for Spark-Ignition Engine Combustion,” Trans. SAE 86 2414 1977
- Blumberg P. N. Lavoie G. A. Tabaczynski R. J. “Phenomenological Models for Reciprocating Internal Combustion Engines,” Progress in Energy and Combustion Science 5 123 1979
- Mattavi J. N. Groff E. G. Lienesch J. H. Matekunas F. A. Noyes R. N. “Engine Improvements through Combustion Modeling,” Combustion Modeling in Reciprocating Engines Mattavi J. N. Amann C. A. Plenum Press 537 1980
- Borgnakke C. Davis G. C. Tabaczynski R. J. “Predictions of In-Cylinder Swirl Velocity and Turbulence Intensity for an Open Chamber Cup in Piston Engine,” Trans. SAE 90 964 1981
- Davis G. C. Borgnakke C. “The Effect of In-Cylinder Flow Processes (Swirl, Squish and Turbulence Intensity) on Engine Efficiency -Model Predictions,” Trans. SAE 91 176 1982
- Borgnakke C. Martin J. K. Witze P. O. “Turbulent Combustion Rate in a Spark Ignition Engine - Some Comparisons Between Model Predictions and Experiments,” Paper WSS/CI 82-69 Western States Section 1982 Fall Meeting National Laboratories Report No. SAND82-8798 1982
- Keck J. C. “Turbulent Flame Structure and Speed in Spark-Ignition Engines,” Nineteenth Symposium (International) on Combustion, The Combustion Institute Pittsburg PA 1451 1982
- Dyer T. M. “Characterization of One- and Two-Dimensional Homogeneous Combustion Phenomena in a Constant Volume Bomb,” Trans. SAE 88 1196 1979
- Witze P. O. Martin J. K. Borgnakke C. “Conditionally-Sampled Velocity and Turbulence Measurements in a Spark Ignition Engine,” Combustion Science and Technology 34 227 1984
- Hunt J. C. R. “A Review of the Theory of Rapidly Distorted Turbulent Flows and Its Applications,” XIII Biennial Fluid Dynamics Symposium, Advanced Problems and Methods in Fluid Mechanics Poland 1977