Fractal analysis of turbulent premixed flames in closed combustion chamber (2nd report, cross-sectional structure near the chamber wall)

Sadami Yoshiyama; Yoshisuke Hamamoto; Eiji Tomita; Toshiaki Nishijima

doi:10.1299/kikaib.66.647_1865

Fractal analysis of turbulent premixed flames in closed combustion chamber (2nd report, cross-sectional structure near the chamber wall)

Sadami Yoshiyama, Yoshisuke Hamamoto, Eiji Tomita, Toshiaki Nishijima

Graduate School of Natural Science and Technology

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

Abstract

The cross-sectional flame images were measured during the late stage of flame propagation in closed combustion chamber. The initial flame had larger wrinkles and the late flame had smaller structure as the flame propagated in the chamber. The fractal analysis of the flame boundaries was performed. The fractal dimension increased and inner cutoff scale decreased with the increase of mixture density. It was found that the fractal dimension is expressed as a function of the turbulence intensity, laminar burning velocity and mixture density during the flame propagation.

Original language	English
Pages (from-to)	1865-1870
Number of pages	6
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	66
Issue number	647
DOIs	https://doi.org/10.1299/kikaib.66.647_1865
Publication status	Published - Jul 2000

Keywords

Combustion
Fractal
Laser tomography
Premixed combustion
Premixed flame
Turbulent flame

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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10.1299/kikaib.66.647_1865

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Fractal analysis of turbulent premixed flames in closed combustion chamber (2nd report, cross-sectional structure near the chamber wall). / Yoshiyama, Sadami; Hamamoto, Yoshisuke; Tomita, Eiji et al.
In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 66, No. 647, 07.2000, p. 1865-1870.

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

Yoshiyama, S, Hamamoto, Y, Tomita, E & Nishijima, T 2000, 'Fractal analysis of turbulent premixed flames in closed combustion chamber (2nd report, cross-sectional structure near the chamber wall)', Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, vol. 66, no. 647, pp. 1865-1870. https://doi.org/10.1299/kikaib.66.647_1865

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AB - The cross-sectional flame images were measured during the late stage of flame propagation in closed combustion chamber. The initial flame had larger wrinkles and the late flame had smaller structure as the flame propagated in the chamber. The fractal analysis of the flame boundaries was performed. The fractal dimension increased and inner cutoff scale decreased with the increase of mixture density. It was found that the fractal dimension is expressed as a function of the turbulence intensity, laminar burning velocity and mixture density during the flame propagation.

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Fractal analysis of turbulent premixed flames in closed combustion chamber (2nd report, cross-sectional structure near the chamber wall)

Abstract

Keywords

ASJC Scopus subject areas

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