Tumble instability in the IC engine

descriptionPublicationkeyboard_double_arrow_right Article , Conference object 27 Aug 2003Publisher:IEEEJournal:Proceedings of the 41st IEEE Conference on Decision and Control, 2002., volume 3, pages 3,279-3,281

Authors: Mark Fogleman; John L. Lumley; Daniel Haworth; Dietmar Rempfer;

doi: 10.1109/cdc.2002.1184378

Tumble instability in the IC engine

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Abstract

Summary form only given. The objective of this project is to analyze the instability associated with the breakdown of tumble during compression of an internal combustion engine flow. It has been observed that the tumble vortex (a vortex whose axis is perpendicular to the cylinder axis which is produced during intake by an asymmetry of the valve(s)) becomes unstable during compression and ultimately leads to turbulence near the end of compression. This turbulence leads directly to better engine performance and the possible use of leaner fuel mixtures via faster burning rates.

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