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Technical Brief

Application of a Nonadiabatic Flamelet/Progress-Variable Approach to Large-Eddy Simulation of H2/O2 Combustion Under a Pressurized Condition

[+] Author and Article Information
Akihiro Kishimoto

Department of Mechanical Engineering and Science,
Advanced Research Institute of
Fluid Science and Engineering,
Kyoto University,
Kyoto daigaku-Katsura,
Nishikyo-ku 615-8540, Kyoto, Japan

Hideki Moriai, Masaki Adachi, Akira Ogawara

Nagoya Guidance & Propulsion Systems Works,
Mitsubishi Heavy Industries Ltd.,
1200 Higashi Tanaka,
Komaki 485-8561, Aichi, Japan

Kenichiro Takenaka

Department of Mechanical Engineering and Science,
Advanced Research Institute of
Fluid Science and Engineering,
Kyoto University,
Kyoto daigaku-Katsura,
Nishikyo-ku, Kyoto 615-8540, Japan

Takayuki Nishiie

Numerical Flow Designing Co., Ltd.,
1-10-10 Higashi-Gotanda,
Shinagawa-ku, Tokyo 141-0022, Japan

Ryoichi Kurose

Department of Mechanical Engineering and Science,
Advanced Research Institute of
Fluid Science and Engineering,
Kyoto University,
Kyoto daigaku-Katsura,
Nishikyo-ku 615-8540, Kyoto, Japan
e-mail: kurose@mech.kyoto-u.ac.jp

1Corresponding author.

Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received February 17, 2017; final manuscript received June 14, 2017; published online August 9, 2017. Editor: Portonovo S. Ayyaswamy.

J. Heat Transfer 139(12), 124501 (Aug 09, 2017) (4 pages) Paper No: HT-17-1086; doi: 10.1115/1.4037099 History: Received February 17, 2017; Revised June 14, 2017

A new nonadiabatic procedure of the flamelet/progress-variable approach (NA-FPV approach) is proposed, and the validity is assessed by performing a large eddy simulation (LES) employing the NA-FPV approach for an H2/O2 combustion field in a single element coaxial combustor under a pressurized condition. The results show that the LES employing the NA-FPV approach can successfully predict the heat flux and capture the effects of heat loss through the cooled walls on the combustion characteristics. This procedure is quite useful especially for the numerical simulations of combustion fields with high temperatures, where there remain reactive radicals (e.g., OH, CH) with high concentrations, such as pressurized combustion, supercritical combustion, and oxygen combustion.

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References

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Figures

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Fig. 1

Schematics of computational domain and conditions

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Fig. 2

Examples of profiles of (a) temperature and (b) enthalpy in Z space (χ = 1.0) in flamelet library

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Fig. 3

Comparison of instantaneous distribution of temperature between (a) FPV and (b) NA-FPV approaches

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Fig. 4

Comparisons of radial profiles of time-averaged (a) temperature, T¯, (b) OH mass fraction, Y¯OH, and (c) H2O mass fraction, Y¯H2O, at x = 0.15 m between FPV and NA-FPV approaches

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Fig. 5

Comparison of streamwise profile of time-averaged wall heat flux, q¯wall, among predicted values obtained by FPV and NA-FPV approaches and measured values [1,2]

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