This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Influence of Different Frequencies in the Turbulence on Early Flame Development in a Spark Ignition Engine
Annotation ability available
Sector:
Language:
English
Abstract
Two-components cycle-resolved Laser Doppler Velocimetry (LDV) measurements were performed with high data rate to resolve the flow in a spark ignition engine. The velocity measurements were then processed with both a frequency and a time domain filtering technique to obtain the level of turbulence at different frequencies. Simultaneous cylinder pressure measurements gave information of the duration of the early flame development through a heat release calculation. The initial combustion rate was correlated to the turbulence at different frequencies and the results showed a higher correlation for the high frequencies (4-6 kHz) when the engine was run at 700 rpm.
Authors
Citation
Johansson, B., "The Influence of Different Frequencies in the Turbulence on Early Flame Development in a Spark Ignition Engine," SAE Technical Paper 940990, 1994, https://doi.org/10.4271/940990.Also In
References
- Heywood, J.B “Internal Combustion Engine Fundamentals” 0-07-100499-8 1989
- Neij, H “Development of Laser-Induced Fluorescence for Combustion Engine Diagnostics” Lund Reports on Combustion Physics Lund Inst. of Techn 1993
- Neij, H.M Johansson, B Aldén, M “Cycle-Resolved Two-Dimensional Laser-Induced Flourescence. Measurements of Fuel/Air Ratio Correlated to Early Combustion in a Spark-Ignition Engine” Int. Conf. on Unsteady Combustion Lisbon 6 17 Sep 1993
- Johansson, B “Influence of the Velocity Near the Spark Plug on Early Flame Development” SAE 930481
- Lorenz, M Mšller. A Prescher, K Strehlow, K “Turbulence and Combustion Speed in a Spark Ignition Engine -Part 2” MTZ-Motortechnische Zeitschrift 50 1989 10
- LeCoz, J.F. “Cycle-to-Cycle Correlations Between Flow Field and Combustion Initiation in an S.I. Engine” SAE 920517
- Pischinger, S Heywood, J.B “How Heat Losses to the Spark Plug Electrodes Affect Flame Kernel Development in an SI-Engine” SAE 900021
- Corcione, F.E. Valentino, G “Cycle-resolved LDV measurements in an IC Engine Equipped with Different Combustion Chamber Shapes” Applications of Laser Anemometry to Fluid Mechanics, 4th Int. Symp. Lisbon, Portugal 1988
- Johansson, B “Correlation Between Cycle-Resolved 2-D Velocity Measurements and Early Combustion in a Spark-Ignition Engine” SIPE Vol. 2052 Laser Anemometry. Advances. and Applications 1993 695 702
- Johansson, B “Correlation Between Velocity Parameters Measured with Cycle-Resolved 2-D LDV and Early Combustion in a Spark Ignition Engine” Dept. of Heat&Power Enggr, Lund Inst. of Techn. 1993
- Fansler, T.D “Turbulence Production and Relaxation in Bowl-in-Pistion Engines” SAE 930479
- Halldin, C “Particle size measurements from the Hudson atomiser”
- Corcione, F.E Valentino, G “Characterization of Fluid-Dynanic Behaviour of Diesel Engine by LDA Technique” Laser Anenometery 159 167 1 ASME 1991