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Heidari, A.; Wen, J. (2017)
Publisher: Elsevier
Languages: English
Types: Article
Subjects: QC, mechanical

Classified by OpenAIRE into

arxiv: Physics::Fluid Dynamics, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Solar and Stellar Astrophysics, Mathematics::Analysis of PDEs
A numerical approach is developed to simulate detonation propagation, attenuation, failure and re-initiation in hydrogen–air mixture. The aim is to study the condition under which detonations may fail or re-initiate in bifurcated tubes which is important for risk assessment in industrial accidents. A code is developed to solve compressible, multidimensional, transient, reactive Navier–Stokes equations. An Implicit Large Eddy Simulation approach is used to model the turbulence. The code is developed and tested to ensure both deflagrations (when detonation fails) and detonations are simulated correctly. The code can correctly predict the flame properties as well as detonation dynamic parameters. The detonation propagation predictions in bifurcated tubes are validated against the experimental work of Wang et al. [1,2] and found to be in good agreement with experimental observations.
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    • 1. C. J. Wang, S. L. Xu, C. M. Guo, “Study on gaseous detonation propagation in a bifurcated tube”, Journal of Fluid Mechanics 25 599, pp 81-110, 2008.
    • 2. C. Guo, C. Wang, S. Xu, H. Zhang, “Cellular pattern evolution in gaseous detonation diffraction in a 90◦-branched channel”, Combustion and Flame 148 (2007) 89-99.
    • 3. S. Carr , G. C. Premier, A. J. Guwy, R. M. Dinsdale, J.Maddy, “Hydrogen storage and demand to increase wind power onto electricity distribution networks”, International Journal of Hydrogen Energy, Volume 39, Issue 19, 2014, 10195-10207.
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