Application of LES for Analysis of Unsteady Effects on Combustion Processes and Misfires in DISI Engine

Cycle-to-cycle variations of combustion processes strongly affect the emissions, specific fuel consumption and work output. Internal combustion engines such as Direct Injection Spark-Ignition (DISI) are very sensitive to the cyclic fluctuations of the flow, mixing...

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Main Authors:	Goryntsev D., Nishad K., Sadiki A., Janicka J.
Format:	Article
Language:	English
Published:	EDP Sciences 2013-10-01
Series:	Oil & Gas Science and Technology
Online Access:	http://dx.doi.org/10.2516/ogst/2013125

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spelling	doaj-b60471ec46654b8cb14cd04681650fe72021-02-02T01:20:09ZengEDP SciencesOil & Gas Science and Technology1294-44751953-81892013-10-0169112914010.2516/ogst/2013125ogst120206Application of LES for Analysis of Unsteady Effects on Combustion Processes and Misfires in DISI EngineGoryntsev D.0Nishad K.Sadiki A.1Janicka J.2Darmstadt University of Technology, Department of Mechanical Engineering, Institute of Energy and Power Plant TechnologyDarmstadt University of Technology, Department of Mechanical Engineering, Institute of Energy and Power Plant TechnologyDarmstadt University of Technology, Department of Mechanical Engineering, Institute of Energy and Power Plant Technology Cycle-to-cycle variations of combustion processes strongly affect the emissions, specific fuel consumption and work output. Internal combustion engines such as Direct Injection Spark-Ignition (DISI) are very sensitive to the cyclic fluctuations of the flow, mixing and combustion processes. Multi-cycle Large Eddy Simulation (LES) analysis has been used in order to characterize unsteady effects of combustion processes and misfires in realistic DISI engine. A qualitative analysis of the intensity of cyclic variations of in-cylinder pressure, temperature and fuel mass fraction is presented. The effect of ignition probability and analysis of misfires are pointed out. Finally, the fuel history effects along with the effect of residual gas on in-cylinder pressure and temperature as well as misfires are discussed. http://dx.doi.org/10.2516/ogst/2013125
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Goryntsev D. Nishad K. Sadiki A. Janicka J.
spellingShingle	Goryntsev D. Nishad K. Sadiki A. Janicka J. Application of LES for Analysis of Unsteady Effects on Combustion Processes and Misfires in DISI Engine Oil & Gas Science and Technology
author_facet	Goryntsev D. Nishad K. Sadiki A. Janicka J.
author_sort	Goryntsev D.
title	Application of LES for Analysis of Unsteady Effects on Combustion Processes and Misfires in DISI Engine
title_short	Application of LES for Analysis of Unsteady Effects on Combustion Processes and Misfires in DISI Engine
title_full	Application of LES for Analysis of Unsteady Effects on Combustion Processes and Misfires in DISI Engine
title_fullStr	Application of LES for Analysis of Unsteady Effects on Combustion Processes and Misfires in DISI Engine
title_full_unstemmed	Application of LES for Analysis of Unsteady Effects on Combustion Processes and Misfires in DISI Engine
title_sort	application of les for analysis of unsteady effects on combustion processes and misfires in disi engine
publisher	EDP Sciences
series	Oil & Gas Science and Technology
issn	1294-4475 1953-8189
publishDate	2013-10-01
description	Cycle-to-cycle variations of combustion processes strongly affect the emissions, specific fuel consumption and work output. Internal combustion engines such as Direct Injection Spark-Ignition (DISI) are very sensitive to the cyclic fluctuations of the flow, mixing and combustion processes. Multi-cycle Large Eddy Simulation (LES) analysis has been used in order to characterize unsteady effects of combustion processes and misfires in realistic DISI engine. A qualitative analysis of the intensity of cyclic variations of in-cylinder pressure, temperature and fuel mass fraction is presented. The effect of ignition probability and analysis of misfires are pointed out. Finally, the fuel history effects along with the effect of residual gas on in-cylinder pressure and temperature as well as misfires are discussed.
url	http://dx.doi.org/10.2516/ogst/2013125
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Application of LES for Analysis of Unsteady Effects on Combustion Processes and Misfires in DISI Engine

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