The effect of turbulence on combustion in cylinder of a spark-ignition engine=evaluation of entrainment model

Eiji Tomita, Yoshisuke Hamamoto

Research output: Contribution to journalConference article

7 Citations (Scopus)

Abstract

A turbulent entrainment model is considered to be reasonable for the combustion in a spark-ignition engine. For this kind of model, it is important to estimate the turbulence characteristics, turbulent burning velocity, flame surface area and several empirical constants. Nevertheless, the examination of these values have not been examined sufficiently. In this study, a combustion model was proposed, and initiation of flame propagation, burning process of an eddy, scale of turbulence and turbulent burning velocity were discussed in detail. This model was examined under various conditions of engine speed (600-1200rpm), compression ratio (3.2-4.8) and ignition timing. The calculation results of mass fraction burned, burn rate and burn duration were in good agreement with the experimental ones. It was found that the concept of such a turbulent entrainment model was valid for predicting the combustion in a spark-ignition engine.

Original languageEnglish
JournalSAE Technical Papers
DOIs
Publication statusPublished - Jan 1 1988
EventInternational Congress and Exposition - Detroit, MI, United States
Duration: Feb 29 1988Mar 4 1988

ASJC Scopus subject areas

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

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