000014550 001__ 14550
000014550 005__ 20161115100155.0
000014550 04107 $$aeng
000014550 046__ $$k2016-08-21
000014550 100__ $$aVillermaux, Emmanuel
000014550 24500 $$aExplosive Fragmentation

000014550 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014550 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014550 506__ $$arestricted
000014550 520__ $$2eng$$aThe forced radial expansion of a spherical liquid shell by an exothermic chemical reaction is a prototypical configuration for the explosion of cohesive materials in three dimensions. The shell is formed by the capillary pinch off of a thin liquid annular jet surrounding a jet of reactive gaseous mixture at ambient pressure. The encapsulated gas in the resulting liquid bubble is a mixture of hydrogen and oxygen in controlled relative proportions, which is ignited by a laser plasma aimed at the center of the bubble. The strongly exothermic combustion of the mixture induces the expansion of the hot burnt gas, pushing the shell radially outwards in a Violently accelerated motion. That motion triggers the instability of the shell, developing thickness modulations ultimately piercing it in a number of holes. The capillary retraction of the holes concentrates the liquid constitutive of the shell into a web of ligaments, whose breakup leads to stable drops. We offer a comprehensive description of the overall process, from the kinematics of the shell initial expansion, to the final drops size distribution as a function of the composition of the gas mixture, the initial shell radius and thickness.

000014550 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014550 653__ $$a

000014550 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014550 720__ $$aVillermaux, Emmanuel
000014550 8560_ $$ffischerc@itam.cas.cz
000014550 8564_ $$s167741$$uhttps://invenio.itam.cas.cz/record/14550/files/TS.FM06-5.04.pdf$$yOriginal version of the author's contribution as presented on CD,  page 828, code TS.FM06-5.04
.
000014550 962__ $$r13812
000014550 980__ $$aPAPER