Towards Large Eddy Simulation of Spray Combustion in Direct Injection Spark Ignition Engine 2011-01-1884
Investigation of unsteady mixing and combustion effects presents a significant interest in the design and optimization of direct injection spark-ignition (DISI) engines. The main attention focused on the analysis of impact of in-cylinder velocity cyclic variations on mixing and combustion processes. For this purpose multi-cycle large eddy simulation (LES) of the flow, mixing and combustion have been done in a realistic four-stroke internal combustion (IC) engine. The LES method has been used to simulate up to 50 consecutive engine cycles. The paper summarizes the main findings regarding cycle-to-cycle variations of in-cylinder velocity flow filed as well as mixing processes. Then the unsteady effects of spray combustion processes are discussed in details.
Citation: Goryntsev, D., Sadiki, A., and Janicka, J., "Towards Large Eddy Simulation of Spray Combustion in Direct Injection Spark Ignition Engine," SAE Technical Paper 2011-01-1884, 2011, https://doi.org/10.4271/2011-01-1884. Download Citation
Author(s):
Dmitry Goryntsev, Amsini Sadiki, Johannes Janicka
Affiliated:
TU-Darmstadt
Pages: 11
Event:
SAE International Powertrains, Fuels and Lubricants Meeting
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Spark ignition engines
Combustion and combustion processes
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