1. Blast wave pressure profiles
The term blast wave is used to designate the aerial shock wave resulting from the detonation of an explosive charge. This name is due to the "strong wind" that accompanies the wave and is felt by a stationary observer as the wave passes. Whereas the term shock wave is used more generally to describe a pressure wave with a steep front, but where the wave profile is not characterized in detail.
1.1 Detonation
In a detonation, a shockwave coupled with a flame front propagates through the reactive mixture at supersonic velocity relative to the fresh gas. Because of this property, for a given quantity of explosive, detonations are more destructive than deflagrations. The blast waves resulting from detonations of high explosives...
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Blast wave pressure profiles
Blast wave following a detonation
Bibliography
Standards and norms
- Recommended practice for the classification of flammable liquids, gases, or vapors and of hazardous (classified) locations for electrical installations in chemical process areas. - NFPA 497 - 2008
- Site classification – Explosive gas atmospheres. - NF EN 60079-10-1 - Mai 2016
Regulations
Order of September 29 relating to the assessment and consideration of the probability of occurrence, kinetics, intensity of effects and severity of consequences of potential accidents in hazard studies for classified facilities subject to authorization.
Decree no. 2014-284 of March 3, 2014 amending Title I er of Book V of the Environmental Code....
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