Towards a fast-running method for blast-wave mitigation by a prismatic blast wall |
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Authors: | Sébastien Éveillard Nicolas Lardjane Jean-Yves Vinçont Isabelle Sochet |
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Institution: | 1. CEA, DAM, DIF, Bruyères-le-Châtel, 91297 Arpajon, France;2. Laboratoire PRISME – École nationale supérieure d?ingénieurs de Bourges, 88, bd Lahitolle, 18020 Bourges, France |
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Abstract: | A procedure aimed at developing a fast-running method for blast-wave effects characterization behind a protection barrier is presented. Small-scale experiments of a hemispherical gaseous charge (stoichiometric propane–oxygen mixture) without and with a prismatic protective barrier are used to validate the use of an in-house CFD code for gaseous detonation. From numerical experiments, pressure loss of a blast wave at a corner is quantified. These fits, in conjunction with TM5-1300 reflection charts, are used to estimate the maximum overpressure around a protective barrier through geometrical and empirical laws. The results show good agreement with numerical and experimental data from the ANR-BARPPRO research project. |
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Keywords: | Explosion Blast wave Computational fluid dynamics Small-scale experiments Fast-running Protection barrier Gaseous detonation |
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