Experimentally validated 3-D simulation of shock waves generated by dense explosives in confined complex geometries

Rigas, F; Sklavounos, S

dc.contributor.author	Rigas, F	en
dc.contributor.author	Sklavounos, S	en
dc.date.accessioned	2014-03-01T01:22:22Z
dc.date.available	2014-03-01T01:22:22Z
dc.date.issued	2005	en
dc.identifier.issn	0304-3894	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16540
dc.subject	CFD	en
dc.subject	Detonation	en
dc.subject	Explosion simulation	en
dc.subject	Explosives	en
dc.subject	Overpressure	en
dc.subject	Shock wave	en
dc.subject.classification	Engineering, Environmental	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Environmental Sciences	en
dc.subject.other	Computational fluid dynamics	en
dc.subject.other	Computer simulation	en
dc.subject.other	Explosives	en
dc.subject.other	Hazards	en
dc.subject.other	Risk assessment	en
dc.subject.other	Wave propagation	en
dc.subject.other	Accidental blast wave generation	en
dc.subject.other	Space configuration	en
dc.subject.other	Space confinement	en
dc.subject.other	Supersonic speed	en
dc.subject.other	Shock waves	en
dc.subject.other	explosive	en
dc.subject.other	explosion	en
dc.subject.other	article	en
dc.subject.other	computational fluid dynamics	en
dc.subject.other	geometry	en
dc.subject.other	hazard assessment	en
dc.subject.other	shock wave	en
dc.subject.other	simulation	en
dc.subject.other	validation process	en
dc.subject.other	Chemical Industry	en
dc.subject.other	Computer Simulation	en
dc.subject.other	Explosions	en
dc.subject.other	Hazardous Substances	en
dc.subject.other	High-Energy Shock Waves	en
dc.subject.other	Imaging, Three-Dimensional	en
dc.subject.other	Models, Chemical	en
dc.subject.other	Occupational Health	en
dc.subject.other	Pressure	en
dc.subject.other	Risk Assessment	en
dc.title	Experimentally validated 3-D simulation of shock waves generated by dense explosives in confined complex geometries	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jhazmat.2005.01.031	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jhazmat.2005.01.031	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	Accidental blast wave generation and propagation in the surroundings poses severe threats for people and property. The prediction of overpressure maxima and its change with time at specified distances can lead to useful conclusions in quantitative risk analysis applications. In this paper, the use of a computational fluid dynamics (CFD) code CFX-5.6 on dense explosive detonation events is described. The work deals with the three-dimensional simulation of overpressure wave propagation generated by the detonation of a dense explosive within a small-scale branched tunnel. It also aids at validating the code against published experimental data as well as to study the way that the resulting shock wave propagates in a confined space configuration. Predicted overpressure histories were plotted and compared versus experimental measurements showing a reasonably good agreement. Overpressure maxima and corresponding times were found close to the measured ones confirming that CFDs may constitute a useful tool in explosion hazard assessment procedures. Moreover, it was found that blast wave propagates preserving supersonic speed along the tunnel accompanied by high overpressure levels, and indicating that space confinement favors the formation and maintenance of a shock rather than a weak pressure wave. &COPY; 2005 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Hazardous Materials	en
dc.identifier.doi	10.1016/j.jhazmat.2005.01.031	en
dc.identifier.isi	ISI:000229556500003	en
dc.identifier.volume	121	en
dc.identifier.issue	1-3	en
dc.identifier.spage	23	en
dc.identifier.epage	30	en