Towards a fast-running method for blast-wave mitigation by a prismatic blast wall

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 valida...

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Veröffentlicht in:	Comptes rendus. Mecanique 2013-08, Vol.341 (8), p.625-635
Hauptverfasser:	Éveillard, Sébastien, Lardjane, Nicolas, Vinçont, Jean-Yves, Sochet, Isabelle
Format:	Artikel
Sprache:	eng
Schlagworte:	Barriers Blast walls Blast wave Compressible flows shock and detonation phenomena Computational fluid dynamics Computational methods in fluid dynamics Corners Exact sciences and technology Explosion Fast-running Fluid dynamics Fundamental areas of phenomenology (including applications) Gaseous detonation Mathematical models Overpressure Physics Protection barrier Protective Reflection Shock-wave interactions and shock effects Small-scale experiments
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Beschreibung
Zusammenfassung:	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.
ISSN:	1631-0721 1873-7234 1873-7234
DOI:	10.1016/j.crme.2013.06.004