Fractal characteristics of turbulent premixed flames under the conditions of lean limit of flame propagation in a spark ignition engine

Sadami Yoshiyama; Eiji Tomita; Yoshisuke Hamamoto; Takeshi Hamagami

doi:10.1299/kikaib.69.1509

Fractal characteristics of turbulent premixed flames under the conditions of lean limit of flame propagation in a spark ignition engine

Sadami Yoshiyama, Eiji Tomita, Yoshisuke Hamamoto, Takeshi Hamagami

Graduate School of Natural Science and Technology

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

Abstract

Flame structure of a spark ignition engine under the conditions of lean burn limit was investigated. The experiment was performed with propane air mixture of equivalence ratios of 0.50 and 0.55. The flames had a small structure that the unburned gas was entrained into the burned gas, or were obstructed by turbulence and the partial quenching was observed. Fractal analysis was performed for the flame boundaries of the obtained images. The values of the fractal dimension under lean limit conditions reached 1.45 larger than that of non-reaction turbulence.

Original language	English
Pages (from-to)	1509-1514
Number of pages	6
Journal	Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	69
Issue number	682
DOIs	https://doi.org/10.1299/kikaib.69.1509
Publication status	Published - Jun 2003

Keywords

Combustion Phenomena
Flame
Fractal
Internal Combustion Engine
Laser Tomography
Lean Burn
Premixed Combustion
Turbulent Flame

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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10.1299/kikaib.69.1509

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Fractal characteristics of turbulent premixed flames under the conditions of lean limit of flame propagation in a spark ignition engine. / Yoshiyama, Sadami; Tomita, Eiji; Hamamoto, Yoshisuke; Hamagami, Takeshi.

In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 69, No. 682, 06.2003, p. 1509-1514.

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

Yoshiyama, S, Tomita, E, Hamamoto, Y & Hamagami, T 2003, 'Fractal characteristics of turbulent premixed flames under the conditions of lean limit of flame propagation in a spark ignition engine', Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, vol. 69, no. 682, pp. 1509-1514. https://doi.org/10.1299/kikaib.69.1509

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Fractal characteristics of turbulent premixed flames under the conditions of lean limit of flame propagation in a spark ignition engine

Abstract

Keywords

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