An Eulerian multimaterial framework for simulating high-explosive aquarium tests

Lozano, Eduardo; Jackson, Gregory S.; Petr, Vilem

doi:10.1016/j.compfluid.2020.104524

Cited by 4 publications

(3 citation statements)

References 40 publications

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“…The variation of the VOD, that in some cases is around 10-15 between points, could be due to the accuracy of the measurements conducted in the still frames. However, Lozano et al [7] found a similar variation in their tests.…”

Section: Vod and Expanding Gases Of The Anfo Chargesmentioning

confidence: 78%

“…Lozano et. al, in their ANFO Aquarium studies [7] also found a bright zone around the detonation front. However, the zone that they observed was shorter Copyright © 2019 Łukasiewicz Research Network -Institute of Industrial Organic Chemistry, Poland in length than the one described in this study.…”

Section: Bright Zonementioning

confidence: 85%

“…With the advent of lower cost and high-fidelity digital video technology, and particularly high-speed video cameras, it is now much easier and accessible to study fast physical-chemical processes such as the detonation of an explosive charge [7][8][9]. With this technology, there was an opportunity to revisit past studies on ANFO and conduct an analysis of the detonation process at high recording rates (i.e.…”

Section: Introductionmentioning

confidence: 99%

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Preliminary Detonation Study of Dry, Wet and Aluminised ANFO Using High-Speed Video

Araos

Onederra

2019

Cent. Eur. J. Energ. Mater.

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ANFO is a well-known, reliable and safe commercial explosive. It has been around since the late 1950's and its detonation properties are well characterized. In this study, the detonation process of dry, wet and aluminised ANFO, was recorded using two high-speed cameras with recording rates of 1,200 fps and 50,000 fps. The 1,200-fps footage allowed the observation of the post blast fumes (i.e. NOx) produced by ANFOs with different water contents. The 50,000-fps footage allowed the observation of the detonation area, gas expansion phase and the measurement of the velocity of detonation (VOD). The video footage also recorded a bright zone in front of the gases (longer than 50 mm). We assumed that a reaction is taking place in this zone, but it is difficult to be sure if this is the reaction zone or not as it is longer than previously reported reaction zone lengths. Analysis showed that ANFO detonates effectively for water contents of up to 9 wt.%, and more importantly, there is little variation in the VOD. As far as the expansion of gases is concerned, the ANFO-Al expansion rate appears to be different. In this mixture, the absence of NOx fumes could have been due to the expected higher temperatures produced by the burning of the aluminium additive as observed in the images recorded with the high-speed camera.