Characteristics of flamelet in spray flames (2nd report, effects of spray droplet size, equivalence ratio and fuel)

Hiroaki Watanabe, Ryoichi Kurose, Seung Min Hwang, Mariko Nakamura, Fumiteru Akamatsu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Characteristics of flamelet in spray flames in a laminar counterflow are investigated by a two-dimensional DNS in terms of mixture fraction and scalar dissipation rate. The motion of spray droplets is calculated by the Lagrangian method without parcel model. Decane and heptane are targeted as a fuel. The results show that for both fuels, temperature and mass fractions of chemical species cannot be clearly identified by mixture fraction and scalar dissipation rate by themselves. This behavior is caused by the fuels' evaporation in the spray flame, and becomes marked in the smaller droplet size condition due to its higher evaporation rate and in the higher equivalence ratio condition due to its larger evaporation amount.

Original languageEnglish
Pages (from-to)2064-2071
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume72
Issue number8
Publication statusPublished - Aug 1 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering

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