Flame spread behaviour of blended fuel droplet array

Jeong Park, Hideaki Kobayashi, Takashi Niioka

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Experimental investigation of the effect of blended fuel on flame spread along droplet array has been conducted. Flame spread rate is measured using high-speed chemiluminescence images of an OH radical. The flame spread is observed with the initial droplet diameter, droplet spacing, and the mixing ratio of n-heptane and n-hexadecane. The mode of flame spread is categorized into two types: a continuous mode and an intermittent one. It is seen that flame spread rate is sensitively dependent on the relative flame position to droplet spacing. For a large droplet, the flame spread time is governed by a volatile fuel (heptane), but for a small droplet, it is controlled by a less volatile fuel (hexadecane).

Original languageEnglish
Pages (from-to)1305-1312
Number of pages8
JournalInternational Journal of Energy Research
Issue number15
Publication statusPublished - 1999 Dec


  • Blended fuel
  • Droplet spacing
  • Flame propagation
  • Flame spread
  • Unburnt droplet
  • Volatile


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