1996-10-01

Computation of Flow and Combustion in Spark Ignition Engine and Comparison with Experiment 961960

A computational fluid dynamics study of the internal flow and the combustion process within two different spark ignition engines has been carried out. Numerical simulations have been performed with the Kiva-II code using an ignition model taking into account the velocity field in the spark plug area and the coherent flame model. This modeling approach was successfully validated in single cylinder research engine under various operating conditions and then was applied in a four valve pent roof production engine. The location and magnitude of heat releases, flame areas and temperature distributions were visualized and analyzed for all cases. The characteristics of these models were also addressed by examining the influence of different engine parameters: speed, load, air-fuel ratio, spark ignition timing. The results were compared with experimental studies including laser Doppler velocimetry, in-cylinder pressure measurements and combustion velocity. Good levels of agreement were obtained using the same modeling approach for all the engine cases.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

The Importance of Turbulence and Initial Flame Kernel Center Position on the Cyclic Combustion Variations for Spark-Ignition Engine

961969

View Details

TECHNICAL PAPER

Large Eddy Simulation of Ignition and Combustion Stability in a Lean SI Optical Access Engine

2019-24-0087

View Details

TECHNICAL PAPER

A Sensitivity Analysis for Sparse-Lagrangian MMC in Simulations of a n-dodecane Reacting Jet

2016-01-0859

View Details

X