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Numerical simulations of large-scale detonation tests in the RUT facility by the LES model

Zbikowski, M., Makarov, Dmitriy and Molkov, Vladimir (2010) Numerical simulations of large-scale detonation tests in the RUT facility by the LES model. International Journal of Hydrogen Energy, 181 (1-3). pp. 949-956. [Journal article]

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URL: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TGF-506RN5T-3&_user=126978&_coverDate=09%2F15%2F2010&_alid=1442282437&_rdoc=2&_fmt=high&_orig=search&_cdi=5253&_sort=r&_docanchor=&view=c&_ct=2&_acct=C000010438&_version=1&_urlVersion=0&_userid=12

DOI: doi:10.1016/j.jhazmat.2010.05.105


The LES model based on the progress variable equation and the gradient method to simulate propagation of the reaction front within the detonation wave, which was recently verified by the ZND theory, is tested in this study against two large-scale experiments in the RUT facility. The facility was 27.6 m × 6.3 m × 6.55 m compartment with complex three-dimensional geometry. Experiments with 20% and 25.5% hydrogen–air mixture and different location of direct detonation initiation were simulated. Sensitivity of 3D simulations to control volume size and type were tested and found to be stringent compared to the planar detonation case. The maximum simulated pressure peak was found to be lower than the theoretical von Neumann spike value for the planar detonation and larger than the Chapman–Jouguet pressure thus indicating that it is more challenging to keep numerical reaction zone behind a leading front of numerical shock for curved fronts with large control volumes. The simulations demonstrated agreement with the experimental data.

Item Type:Journal article
Faculties and Schools:Faculty of Art, Design and the Built Environment
Faculty of Art, Design and the Built Environment > School of the Built Environment
Research Institutes and Groups:Built Environment Research Institute
Built Environment Research Institute > Hydrogen Safety Engineering and Research Centre (HySAFER)
ID Code:15384
Deposited By: Professor Vladimir Molkov
Deposited On:29 Aug 2010 21:05
Last Modified:22 Aug 2011 15:04

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