Study on factors affecting shape characteristics of spherically propagating i-C8H18/O2/N2 turbulent flames using constant volume vessel

Yukihide Nagano; Akihiro Tsuda; Akira Noomo; Takuya Fukushima; Masayoshi Morita; Toshiaki Kitagawa

Study on factors affecting shape characteristics of spherically propagating i-C₈H₁₈/O₂/N₂ turbulent flames using constant volume vessel

Yukihide Nagano, Akihiro Tsuda, Akira Noomo, Takuya Fukushima, Masayoshi Morita, Toshiaki Kitagawa

Combustion

Research output: Contribution to conference › Paper › peer-review

Abstract

Combustion enhancement is necessary for the improvement of thermal efficiency of spark ignition engines operated under lean and high EGR rate conditions. It is important to understand the interaction of turbulence and flame in order to enhance the combustion by the turbulence. The flame front area is considered to be one of the most dominant factor for turbulent burning velocity. The shape of turbulent flame can be characterized by fractal characteristics and the flame front area can be estimated using fractal characteristics. In this study, turbulent iso-octane/O₂/N₂ flames were investigated under N₂ diluted conditions and elevated pressure conditions using a constant volume vessel. The shape characteristics of spherically propagating premixed turbulent iso-octane/O₂/N₂ flames were evaluated by fractal analysis. Influences of turbulent properties and flame properties on fractal characteristics, such as fractal dimension and inner-cutoff scale were investigated.

Original language	English
Publication status	Published - 2017
Event	9th International Conference on Modeling and Diagnostics for Advanved Engine Systems, COMODIA 2017 - Okayama, Japan Duration: Jul 25 2017 → Jul 28 2017

Other

Other	9th International Conference on Modeling and Diagnostics for Advanved Engine Systems, COMODIA 2017
Country/Territory	Japan
City	Okayama
Period	7/25/17 → 7/28/17

All Science Journal Classification (ASJC) codes

Control and Systems Engineering
Electrical and Electronic Engineering
Mechanical Engineering

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Study on factors affecting shape characteristics of spherically propagating i-C₈H₁₈/O₂/N₂ turbulent flames using constant volume vessel. / Nagano, Yukihide; Tsuda, Akihiro; Noomo, Akira et al.
2017. Paper presented at 9th International Conference on Modeling and Diagnostics for Advanved Engine Systems, COMODIA 2017, Okayama, Japan.

Research output: Contribution to conference › Paper › peer-review

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title = "Study on factors affecting shape characteristics of spherically propagating i-C8H18/O2/N2 turbulent flames using constant volume vessel",

abstract = "Combustion enhancement is necessary for the improvement of thermal efficiency of spark ignition engines operated under lean and high EGR rate conditions. It is important to understand the interaction of turbulence and flame in order to enhance the combustion by the turbulence. The flame front area is considered to be one of the most dominant factor for turbulent burning velocity. The shape of turbulent flame can be characterized by fractal characteristics and the flame front area can be estimated using fractal characteristics. In this study, turbulent iso-octane/O2/N2 flames were investigated under N2 diluted conditions and elevated pressure conditions using a constant volume vessel. The shape characteristics of spherically propagating premixed turbulent iso-octane/O2/N2 flames were evaluated by fractal analysis. Influences of turbulent properties and flame properties on fractal characteristics, such as fractal dimension and inner-cutoff scale were investigated.",

author = "Yukihide Nagano and Akihiro Tsuda and Akira Noomo and Takuya Fukushima and Masayoshi Morita and Toshiaki Kitagawa",

note = "Funding Information: This work was supported by Council for Science, Technology and Innovation (CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP), “Innovative Combustion Technology” (Funding agency: JST). Publisher Copyright: Copyright {\textcopyright} 2017 by the Japan Society of Mechanical Engineers.; 9th International Conference on Modeling and Diagnostics for Advanved Engine Systems, COMODIA 2017 ; Conference date: 25-07-2017 Through 28-07-2017",

year = "2017",

language = "English",

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T1 - Study on factors affecting shape characteristics of spherically propagating i-C8H18/O2/N2 turbulent flames using constant volume vessel

AU - Nagano, Yukihide

AU - Tsuda, Akihiro

AU - Noomo, Akira

AU - Fukushima, Takuya

AU - Morita, Masayoshi

AU - Kitagawa, Toshiaki

N1 - Funding Information: This work was supported by Council for Science, Technology and Innovation (CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP), “Innovative Combustion Technology” (Funding agency: JST). Publisher Copyright: Copyright © 2017 by the Japan Society of Mechanical Engineers.

PY - 2017

Y1 - 2017

N2 - Combustion enhancement is necessary for the improvement of thermal efficiency of spark ignition engines operated under lean and high EGR rate conditions. It is important to understand the interaction of turbulence and flame in order to enhance the combustion by the turbulence. The flame front area is considered to be one of the most dominant factor for turbulent burning velocity. The shape of turbulent flame can be characterized by fractal characteristics and the flame front area can be estimated using fractal characteristics. In this study, turbulent iso-octane/O2/N2 flames were investigated under N2 diluted conditions and elevated pressure conditions using a constant volume vessel. The shape characteristics of spherically propagating premixed turbulent iso-octane/O2/N2 flames were evaluated by fractal analysis. Influences of turbulent properties and flame properties on fractal characteristics, such as fractal dimension and inner-cutoff scale were investigated.

AB - Combustion enhancement is necessary for the improvement of thermal efficiency of spark ignition engines operated under lean and high EGR rate conditions. It is important to understand the interaction of turbulence and flame in order to enhance the combustion by the turbulence. The flame front area is considered to be one of the most dominant factor for turbulent burning velocity. The shape of turbulent flame can be characterized by fractal characteristics and the flame front area can be estimated using fractal characteristics. In this study, turbulent iso-octane/O2/N2 flames were investigated under N2 diluted conditions and elevated pressure conditions using a constant volume vessel. The shape characteristics of spherically propagating premixed turbulent iso-octane/O2/N2 flames were evaluated by fractal analysis. Influences of turbulent properties and flame properties on fractal characteristics, such as fractal dimension and inner-cutoff scale were investigated.

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M3 - Paper

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T2 - 9th International Conference on Modeling and Diagnostics for Advanved Engine Systems, COMODIA 2017

Y2 - 25 July 2017 through 28 July 2017

ER -

Study on factors affecting shape characteristics of spherically propagating i-C₈H₁₈/O₂/N₂ turbulent flames using constant volume vessel

Abstract

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All Science Journal Classification (ASJC) codes

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