Effects of swirl turbulent flow field and stratified concentration field on combustion of fuel-air mixture in a constant volume vessel (2nd report, effects of concentration field and turbulence flow field on combustion characteristics)

Atsushi Nishiyama; Eiji Tomita; Nobuyuki Kawahara; Sadami Yoshiyama; Yoshisuke Hamamoto

doi:10.1299/kikaib.70.1092

Effects of swirl turbulent flow field and stratified concentration field on combustion of fuel-air mixture in a constant volume vessel (2nd report, effects of concentration field and turbulence flow field on combustion characteristics)

Atsushi Nishiyama, Eiji Tomita, Nobuyuki Kawahara, Sadami Yoshiyama, Yoshisuke Hamamoto

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

1 Citation (Scopus)

Abstract

A swirling flow and rich fuel concentration near the center were produced in a vessel by tangentially charging air and fuel injection. Propane was used as fuel. Fuel concentration distribution was measured with laser induced fluorescence (LIF) method using acetone as a tracer. It was confirmed that the center-rich stratified fuel concentration was produced. In order to estimate the pattern of the fuel concentration field, the Gaussian fitting method was applied to the equivalence ratio profile. Fuel distribution history obtained from LIF measurement agreed with the calculation result using axisymmetric diffusion equation. The initial stage of combustion was greatly affected by the fuel concentration distribution in the vicinity of the spark location. The stronger turbulence intensity accelerated combustion and main combustion became shorter under the same fuel distribution conditions.

Original language	English
Pages (from-to)	1092-1099
Number of pages	8
Journal	Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	70
Issue number	692
DOIs	https://doi.org/10.1299/kikaib.70.1092
Publication status	Published - Apr 2004
Externally published	Yes

Keywords

Combustion
Flame Propagation
Gasoline Engine
Internal Combustion Engine
LIF
Laser Diagnostics
Premixed Combustion
Stratified Charge
Swirling Flow

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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Nishiyama, A., Tomita, E., Kawahara, N., Yoshiyama, S., & Hamamoto, Y. (2004). Effects of swirl turbulent flow field and stratified concentration field on combustion of fuel-air mixture in a constant volume vessel (2nd report, effects of concentration field and turbulence flow field on combustion characteristics). Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, 70(692), 1092-1099. https://doi.org/10.1299/kikaib.70.1092

Effects of swirl turbulent flow field and stratified concentration field on combustion of fuel-air mixture in a constant volume vessel (2nd report, effects of concentration field and turbulence flow field on combustion characteristics). / Nishiyama, Atsushi; Tomita, Eiji; Kawahara, Nobuyuki et al.

In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 70, No. 692, 04.2004, p. 1092-1099.

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

Nishiyama, A, Tomita, E, Kawahara, N, Yoshiyama, S & Hamamoto, Y 2004, 'Effects of swirl turbulent flow field and stratified concentration field on combustion of fuel-air mixture in a constant volume vessel (2nd report, effects of concentration field and turbulence flow field on combustion characteristics)', Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, vol. 70, no. 692, pp. 1092-1099. https://doi.org/10.1299/kikaib.70.1092

Nishiyama A, Tomita E, Kawahara N, Yoshiyama S, Hamamoto Y. Effects of swirl turbulent flow field and stratified concentration field on combustion of fuel-air mixture in a constant volume vessel (2nd report, effects of concentration field and turbulence flow field on combustion characteristics). Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 2004 Apr;70(692):1092-1099. doi: 10.1299/kikaib.70.1092

Nishiyama, Atsushi ; Tomita, Eiji ; Kawahara, Nobuyuki et al. / Effects of swirl turbulent flow field and stratified concentration field on combustion of fuel-air mixture in a constant volume vessel (2nd report, effects of concentration field and turbulence flow field on combustion characteristics). In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 2004 ; Vol. 70, No. 692. pp. 1092-1099.

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abstract = "A swirling flow and rich fuel concentration near the center were produced in a vessel by tangentially charging air and fuel injection. Propane was used as fuel. Fuel concentration distribution was measured with laser induced fluorescence (LIF) method using acetone as a tracer. It was confirmed that the center-rich stratified fuel concentration was produced. In order to estimate the pattern of the fuel concentration field, the Gaussian fitting method was applied to the equivalence ratio profile. Fuel distribution history obtained from LIF measurement agreed with the calculation result using axisymmetric diffusion equation. The initial stage of combustion was greatly affected by the fuel concentration distribution in the vicinity of the spark location. The stronger turbulence intensity accelerated combustion and main combustion became shorter under the same fuel distribution conditions.",

keywords = "Combustion, Flame Propagation, Gasoline Engine, Internal Combustion Engine, LIF, Laser Diagnostics, Premixed Combustion, Stratified Charge, Swirling Flow",

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AU - Kawahara, Nobuyuki

AU - Yoshiyama, Sadami

AU - Hamamoto, Yoshisuke

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Effects of swirl turbulent flow field and stratified concentration field on combustion of fuel-air mixture in a constant volume vessel (2nd report, effects of concentration field and turbulence flow field on combustion characteristics)

Abstract

Keywords

ASJC Scopus subject areas

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