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THMT-12. Proceedings of the Seventh International Symposium On Turbulence Heat and Mass Transfer
September, 24-27, 2012, Palermo, Italy

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal


ISBN Print: 978-1-56700-302-4

ISSN: 2377-2816

Large eddy simulation of unsteady effects of combustion processes in HCCI engine

pages 875-880
DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.930
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SINOPSIS

The homogeneous charge compression ignition (HCCI) is still a promising concept to optimize internal combustion engines with respect to emissions. The cycle-to-cycle variations of in-cylinder flow play an important role in HCCI combustion processes and can result in combustion instability due to the lean as well as knock combustion conditions. In order to characterize mentioned above effects, the large-eddy simulation (LES) has proved to be a reliable method. Multi-cycle LES based analysis has been carried out on a motored engine configuration to characterize the unsteady effects of HCCI combustion processes and misfire engine cycles.

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