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Safety 2017, 3(2), 16; doi:10.3390/safety3020016

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

Department of Mechanical Systems Engineering, Hiroshima University, Hiroshima 739-8511, Japan
Hydrogen Safety Engineering and Research Centre (HySAFER), Ulster University, Newtownabbey BT37 0QB, UK
Author to whom correspondence should be addressed.
Academic Editor: Raphael Grzebieta
Received: 11 January 2017 / Revised: 2 June 2017 / Accepted: 2 June 2017 / Published: 17 June 2017
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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 computational fluid dynamics (CFD) 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. View Full-Text
Keywords: hydrogen tank; blast wave; fireball; explosion; eddy dissipation model hydrogen tank; blast wave; fireball; explosion; eddy dissipation model

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Kim, W.; Shentsov, V.; Makarov, D.; Molkov, V. Simulations of Blast Wave and Fireball Occurring Due to Rupture of High-Pressure Hydrogen Tank. Safety 2017, 3, 16.

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