3D Simulations by a Detailed Chemistry Combustion Model and Comparison With Experiments of a Light-Duty, Common-Rail D.I. Diesel Engine 2005-24-057
The present paper reports the results of the numerical
simulations carried out by means of a modified version of the
KIVA-3V code and of the comparison with experimental results
obtained by using different optical techniques in a single-cylinder
optically accessible diesel engine. The engine is equipped with a
commercial four valves cylinder head and a second-generation,
Common-Rail injection system.
A detailed kinetic model consisting of 283 reactions involving
69 species is applied to simulate the combustion process and the
soot and NOx formation. The fuel surrogate model consisting of two
constituent components, n-heptane and toluene, approximating the
physical and ignition properties of the diesel oil, is considered.
The Partially Stirred Reactor (PaSR) assumption is adopted to
maintain the computational cost within acceptable limits.
The collections of digital images of the spray evolution, the
mixture formation and the combustion processes are performed by
running the engine at 1000 rpm. The spatial distribution of OH
radicals and soot is also estimated by spectral flame emissions
analysis. Commercial diesel fuel is injected by using three
different strategies, made of one to three consecutive
Citation: Corcione, F., Costa, M., Vaglieco, B., and Omote, H., "3D Simulations by a Detailed Chemistry Combustion Model and Comparison With Experiments of a Light-Duty, Common-Rail D.I. Diesel Engine," SAE Technical Paper 2005-24-057, 2005, https://doi.org/10.4271/2005-24-057. Download Citation
Felice E. Corcione, Michela Costa, Bianca M. Vaglieco, Hiroshi Omote