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Simulations of Blast Wave and Fireball Occurring Due to Rupture of High-Pressure Hydrogen Tank

Kim, Wookyung, Shentsov, Volodymyr, Makarov, Dmitriy and Molkov, Vladimir (2017) Simulations of Blast Wave and Fireball Occurring Due to Rupture of High-Pressure Hydrogen Tank. Safety, 3 (16). pp. 1-10. [Journal article]

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DOI: doi:10.3390/safety3020016

Abstract

In the present study, pilot simulations of the phenomena of blast wave and fireball generated by the rupture of a high-pressure (35 MPa) hydrogen tank (volume 72 L) due to fire were carried out. The CFD (Computational fluid dynamics) model includes the realizable k-ε model for turbulence and the eddy dissipation model coupled with the one-step chemical reaction mechanism for combustion. The simulation results were compared with experimental data on a stand-alone hydrogen tank rupture in a bonfire test. The simulations provided insights into the interaction between the blast wave propagation and combustion process. The simulated blast wave decay is approximately identical to the experimental data concerning pressure at various distances. Fireball is first ignited at the ground level, which is considered to be due to stagnation flow conditions. Subsequently, the flame propagates toward the interface between hydrogen and air.

Item Type:Journal article
Keywords:hydrogen tank; blast wave; fireball; explosion; eddy dissipation model
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:38118
Deposited By: Mr Volodymyr Shentsov
Deposited On:21 Jun 2017 10:13
Last Modified:21 Jun 2017 10:13

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