Premixed flame propagating into a narrow channel at a high speed, part 2: Transient behavior of the properties of the flowing gas inside the channel

Norimasa Iida, Osamu Kawaguchi, G. Takeshi Sato

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The behavior of a premixed flame propagating from a chamber into a narrow channel at a high speed was examined using high speed and instantaneous schlieren photography, ion current measurement with electrostatic probes, and temperature measurement with an optical method. From detailed measurements of flames passing through the channel, flame extinguishment in the channel, no matter whether transient or not, was found to occur due to quenching of the reacting gas by rapid turbulent mixing with cold fresh mixture at the downstream of the contraction region and by heat transfer to the cold channel walls. Extinguishment must occur when these heat losses exceed the heat released by the chemical reaction of the flowing mixture.

Original languageEnglish
Pages (from-to)257-267
Number of pages11
JournalCombustion and Flame
Volume60
Issue number3
DOIs
Publication statusPublished - 1985

Fingerprint

premixed flames
Gases
high speed
Photography
Electric current measurement
Heat losses
gases
Temperature measurement
Chemical reactions
Electrostatics
flames
Quenching
Schlieren photography
Ions
Heat transfer
heat
turbulent mixing
electrostatic probes
ion currents
contraction

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Mechanical Engineering

Cite this

Premixed flame propagating into a narrow channel at a high speed, part 2 : Transient behavior of the properties of the flowing gas inside the channel. / Iida, Norimasa; Kawaguchi, Osamu; Sato, G. Takeshi.

In: Combustion and Flame, Vol. 60, No. 3, 1985, p. 257-267.

Research output: Contribution to journalArticle

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