Turbulent premixed flames in closed combustion chambers

Yoshisuke Hamamoto, Eiji Tomita, Sadami Yoshiyama

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A thick burning zone including unburned and burned gas is observed in turbulent premixed flames. In this study, the burning rate and the ion current in the burning zone were investigated in propane-air turbulent flames in a spark-ignition engine cylinder and a constant-volume combustion chamber. The main results are as follows: (1) in propagating turbulent flame, the rate at which mass is burned is not equal to the rate of mass entrainment to the flame front; (2) the ratio of the combustion rate per unit area of turbulent flame front to that of laminar flame, Z=(M·bT/AT)l(M·bL/AL), is a reasonable expression of the effect of turbulence on the combustion of propagating flame; (3) the ion-current signal has multiple peaks in turbulent flame. The average number of ion current peaks increases with the enlargement of burning zone and the value of Z.

Original languageEnglish
Pages (from-to)171-175
Number of pages5
JournalJSME International Journal, Series B: Fluids and Thermal Engineering
Volume39
Issue number1
DOIs
Publication statusPublished - Feb 1996

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Keywords

  • Burning Velocity
  • Combustion
  • Combustion Measurement
  • Combustion Phenomena
  • Gasoline Engine
  • Internal Combustion Engine
  • Premixed Combustion
  • Spark-Ignition Engine
  • Turbulent Flame

ASJC Scopus subject areas

  • Mechanical Engineering
  • Physical and Theoretical Chemistry
  • Fluid Flow and Transfer Processes

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