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Large Eddy Simulation of Mixing Characteristic in the Cold Rotating Detonation Chamber

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31st International Symposium on Shock Waves 2 (ISSW 2017)

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Abstract

Two-dimensional large eddy simulation (LES) for supersonic compressible multicomponent flow is carried out to investigate the mixing characteristic of the cold non-premixed RDE with different injection strategies. According to the instantaneous and quasi-stead time-averaged flow field, the nonuniform mixing characteristic is presented. The turbulence eddy structure generated by the K-H instability is the main mechanism for promoting the mixing of fuel and oxidizer. Combining the rich and lean combustion limits, the area of the detonation is identified. It is found that the area of the detonation is only a narrow layer near the head end. To improve the mixing efficiency near the head end in the non-premixed RDE, the oxygen injection position and hydrogen injection angle are adjusted preliminary. The mixing characteristics and the area of the detonation are analyzed in detail. The present research can provide the important reference and guidance for the experimental injection design of the RDE.

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Acknowledgments

The work was supported by the National Natural Science Foundation of China (Grant No.11602028; No. 11502029).

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Authors and Affiliations

  1. Institute of Applied Physics and Computational Mathematics, Beijing, China

    R. Zhou & B. L. Tian

  2. Research Center of Heat and Mass Transfer Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing, China

    X. P. Li

  3. College of Engineering, Peking University, Beijing, China

    J. P. Wang

Authors
  1. R. Zhou
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  2. B. L. Tian
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  3. X. P. Li
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  4. J. P. Wang
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Editor information

Editors and Affiliations

  1. Department of Aerospace Engineering, Nagoya University, Nagoya, Japan

    Akihiro Sasoh

  2. Department of Energy and Environmental Engineering, Kyushu University, Kasuga, Fukuoka, Japan

    Toshiyuki Aoki

  3. Institute of Innovative Research, Tokyo Institute of Technology, Tokyo, Japan

    Masahide Katayama

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Zhou, R., Tian, B.L., Li, X.P., Wang, J.P. (2019). Large Eddy Simulation of Mixing Characteristic in the Cold Rotating Detonation Chamber. In: Sasoh, A., Aoki, T., Katayama, M. (eds) 31st International Symposium on Shock Waves 2. ISSW 2017. Springer, Cham. https://doi.org/10.1007/978-3-319-91017-8_13

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  • DOI: https://doi.org/10.1007/978-3-319-91017-8_13

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-91016-1

  • Online ISBN: 978-3-319-91017-8

  • eBook Packages: EngineeringEngineering (R0)

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