Macroscopic flame structure in a premixed-spray burner (formation and disappearance processes of droplet clusters and two-stage flame structure)

Shohji Tsushima, Hiroyasu Saitoh, Fumiteru Akamatsu, Masashi Katsuki

研究成果: Article査読

2 被引用数 (Scopus)

抄録

In an attempt to elucidate formation and disappearance processes of droplet clusters in spray flames, simultaneous measurements consisting of laser tomography and flame chemiluminescence detection are applied to a premixed-spay burner. The smart combination of measurements provides time-series data-set serving for better understanding of spray flames, which essentially contains inhomogeneity in space and time. It is revealed that preferential flame propagation through a premixed-spray stream plays a significant role in creating droplet clusters and that droplet clusters formed in this manner evanesces from their outer boundaries. Those observation confirms that the premixed-spray flame comprises both premixed-mode flame in upstream region and diffusion-mode flame in downstream region, respectively, i.e., two-stage flame structure previously reported for spray flames stabilized in either counter or stagnation flows.

本文言語English
ページ(範囲)616-623
ページ数8
ジャーナルJSME International Journal, Series B: Fluids and Thermal Engineering
44
4
DOI
出版ステータスPublished - 2001 11
外部発表はい

ASJC Scopus subject areas

  • 機械工学
  • 物理化学および理論化学
  • 流体および伝熱

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