Abstract
The effects of vibrational non-equilibrium and vibration–chemistry coupling on hydrogen–air detonation are numerically investigated by solving reactive Euler equations coupled with a multiple vibrational temperature-based model. Detailed hydrogen–air reaction kinetic is utilized, Landau–Teller model is adopted to solve the vibrational relaxation process, and the coupled vibration–chemistry vibration model is used to evaluate the vibration–chemistry coupling. It is shown that the relaxation process and vibration–chemistry coupling considerably influence the hydrogen–air detonation structure, highlighting the importance of correct treatment of vibrational non-equilibrium in detonation simulations.
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Acknowledgment
We are grateful for the computing resources of the Supercomputing Laboratory and the Extreme Computing Research Center at King Abdullah University of Science and Technology. This research was supported by Hong Kong Innovation and Technology Commission (no. ITS/334/15FP) and Natural Science Foundation of China project, numbered 11372265.
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Shi, L.S., Zhang, P., Wen, C.Y., Shen, H., Parsani, M., Zhang, D.L. (2019). Numerical Study of Hydrogen–Air Detonation in Vibrational Non-equilibrium. 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_19
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DOI: https://doi.org/10.1007/978-3-319-91017-8_19
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