Turbulent premixed flames under lean conditions studied with ion current measurement in a homogeneous charge spark-ignition engine

Eiji Tomita, Sadami Yoshiyama, Yasuhiro Ohkura, Hiroshi Tabuchi, Yoshisuke Hamamoto

Research output: Contribution to journalConference article

6 Citations (Scopus)

Abstract

The structures of the turbulent premixed flame in the engine cylinder under lean burn conditions were investigated using ion probe method. The flow fields were measured with an LDA for two tumble ratios and two compression ratios. And ion-current signal was analyzed to discuss the interaction between the turbulence and the flame structure. The effects of turbulence and equivalence ratio on the characteristic values of the turbulent flame, that is to say number of ion-current peaks, thickness of flame front and thickness of burning zone of the flamelet, were investigated. In normal combustion, the structure of the turbulent flame front is almost the same as the laminar flame. In the lean limit, the flamelet is broken and stretched and then the structure may change.

Original languageEnglish
JournalSAE Technical Papers
DOIs
Publication statusPublished - Jan 1 2000
EventInternational Spring Fuels and Lubricants Meeting and Exposition - Paris, France
Duration: Jun 19 2000Jun 22 2000

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

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