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

doi:10.1299/kikaib.72.2064

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 journal › Article › peer-review

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 language	English
Pages (from-to)	2064-2071
Number of pages	8
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	72
Issue number	8
DOIs	https://doi.org/10.1299/kikaib.72.2064
Publication status	Published - Aug 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering

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10.1299/kikaib.72.2064

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Characteristics of flamelet in spray flames (2nd report, effects of spray droplet size, equivalence ratio and fuel). / Watanabe, Hiroaki; Kurose, Ryoichi; Hwang, Seung Min et al.
In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 72, No. 8, 08.2006, p. 2064-2071.

Research output: Contribution to journal › Article › peer-review

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AU - Akamatsu, Fumiteru

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

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